[![Logo](https://www.paloaltonetworks.com/wp-content/uploads/2021/07/PANW_Parent.png)](https://www.paloaltonetworks.com/) [![Unit42 Logo](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/unit42-logo-white.svg)](https://unit42.paloaltonetworks.com/) Menu * [Tools](https://unit42.paloaltonetworks.com/tools/) * [ATOMs](https://unit42.paloaltonetworks.com/atoms/) * [Security Consulting](https://www.paloaltonetworks.com/unit42) * [About Us](https://unit42.paloaltonetworks.com/about-unit-42/) * [**Under Attack?**](https://start.paloaltonetworks.com/contact-unit42.html) English * [English](https://unit42.paloaltonetworks.com/attackers-conducting-cryptojacking-u-s-education-organizations/) * [Japanese](https://unit42.paloaltonetworks.com/ja/attackers-conducting-cryptojacking-u-s-education-organizations/) * [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") * [Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/ "Threat Research") * [Cybercrime](https://unit42.paloaltonetworks.com/category/cybercrime/ "Cybercrime") [Cybercrime](https://unit42.paloaltonetworks.com/category/cybercrime/) # Attackers Conducting Cryptojacking Operation Against U.S. Education Organizations ![Clock Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-clock.svg) 5 min read Related Products [![Advanced Threat Prevention icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/strata_RGB_logo_Icon_Color.png)Advanced Threat Prevention](https://unit42.paloaltonetworks.com/product-category/advanced-threat-prevention/ "Advanced Threat Prevention")[![Advanced WildFire icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/strata_RGB_logo_Icon_Color.png)Advanced WildFire](https://unit42.paloaltonetworks.com/product-category/advanced-wildfire/ "Advanced WildFire")[![Next-Generation Firewall icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/strata_RGB_logo_Icon_Color.png)Next-Generation Firewall](https://unit42.paloaltonetworks.com/product-category/next-generation-firewall/ "Next-Generation Firewall") * ![Profile Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-profile-grey.svg) By: * [Ken Hsu](https://unit42.paloaltonetworks.com/author/ken-hsu/) * [Vaibhav Singhal](https://unit42.paloaltonetworks.com/author/vaibhav-singhal/) * [Zhibin Zhang](https://unit42.paloaltonetworks.com/author/zhibin-zhang/) * ![Published Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-calendar-grey.svg) Published:April 8, 2021 * ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-category.svg) Categories: * [Cybercrime](https://unit42.paloaltonetworks.com/category/cybercrime/) * [Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) * ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-tags-grey.svg) Tags: * [Cryptocurrency mining](https://unit42.paloaltonetworks.com/tag/cryptocurrency-mining/) * [Cryptojacking](https://unit42.paloaltonetworks.com/tag/cryptojacking/) * [Education organizations](https://unit42.paloaltonetworks.com/tag/education-organizations/) * [![Download Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-download.svg)](https://unit42.paloaltonetworks.com/attackers-conducting-cryptojacking-u-s-education-organizations/?pdf=download&lg=en&_wpnonce=c159619a8e "Click here to download") * [![Print Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-print.svg)](https://unit42.paloaltonetworks.com/attackers-conducting-cryptojacking-u-s-education-organizations/?pdf=print&lg=en&_wpnonce=c159619a8e "Click here to print") Share![Down arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/down-arrow.svg) * ![Link Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-share-link.svg) * [![Link Email](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-sms.svg)](mailto:?subject=Attackers%20Conducting%20Cryptojacking%20Operation%20Against%20U.S.%20Education%20Organizations&body=Check%20out%20this%20article%20https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F "Share in email") * [![Facebook Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-fb-share.svg)](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F "Share in Facebook") * [![LinkedIn Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-linkedin-share.svg)](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F&title=Attackers%20Conducting%20Cryptojacking%20Operation%20Against%20U.S.%20Education%20Organizations "Share in LinkedIn") * [![Twitter Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-twitter-share.svg)](https://twitter.com/intent/tweet?url=https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F&text=Attackers%20Conducting%20Cryptojacking%20Operation%20Against%20U.S.%20Education%20Organizations "Share in Twitter") * [![Reddit Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-reddit-share.svg)](https://www.paloaltonetworks.com//www.reddit.com/submit?url=https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F&ts=markdown "Share in Reddit") * [![Mastodon Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-mastodon-share.svg)](https://mastodon.social/share?text=Attackers%20Conducting%20Cryptojacking%20Operation%20Against%20U.S.%20Education%20Organizations%20https%3A%2F%2Funit42.paloaltonetworks.com%2Fattackers-conducting-cryptojacking-u-s-education-organizations%2F "Share in Mastodon") ## Executive Summary It's no news that cryptojacking activity proliferates whenever the price of cryptocurrencies hits record highs. The monetary incentive has definitely incited many to ride the hype wave illegally. As a matter of fact, Unit 42 researchers have observed several [incidents](https://unit42.paloaltonetworks.com/lucifer-new-cryptojacking-and-ddos-hybrid-malware/) where attackers were attempting to deliver malicious cryptominers as the payload upon successful exploitation. Recently, Unit 42 researchers spotted a UPX-packed cpuminer being delivered in malicious traffic. While the malicious traffic appears to be an exploit on first sight, there's also evidence of a backdoor in the malicious request, suggesting a backdoor is running on the compromised host. Upon receipt of the requested payload, the backdoor proceeds to download a cpuminer variant and carry out its cryptojacking operation. In addition to a brief analysis and comparison of the backdoor command traffic from three incidents against education organizations in U.S. education organizations, this blog includes a general examination of mini shell and cpuminer payloads downloaded by the backdoor webshell. Palo Alto Networks Next-Generation Firewall customers with security subscriptions such as [Threat Prevention](https://www.paloaltonetworks.com/products/secure-the-network/subscriptions/threat-prevention) and [WildFire](https://www.paloaltonetworks.com/products/secure-the-network/wildfire), are able to detect and protect against these cryptojacking activities. Palo Alto Networks [AutoFocus](https://www.paloaltonetworks.com/cortex/autofocus) customers are also protected. ## Incident One: A Backdoor in Disguise The first incident happened on Feb. 16, 2021. While the malicious traffic shown in Figure 1 may seem like a trivial command injection vulnerability due to insufficient sanitization of the p1 parameter's value, there are a few outstanding characteristics in the HTTP request that, after investigation, makes us believe this HTTP request is more likely a command for a webshell backdoor. ![Image depicts code with insufficient sanitization of parameter values that suggests the request is a command for a webshell backdoor.](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/04/word-image-50.jpeg) Figure 1. Cpuminer payload discovered on Feb. 16, 2021 The first suspicious characteristic is the wget payload in the p1 parameter. There are no other preceding characters, such as | or \&, before the payload itself, which implies that the application literally takes whatever is in the p1 parameter's value and executes it as an OS command. While legitimate software rarely has this kind of behavior, it's quite common in a backdoor. The next intriguing indication is the host, which is a domain owned by an education organization. Given this context, it's quite unlikely that the sysadmin would use an application that's unheard of. The sysadmin can certainly build and run custom applications, but one with obvious backdoor weakness seems quite improbable under normal circumstances. The fact that this backdoor is unavailable at the time of investigation indicates that it's not meant to be hosted on that domain. The last outstanding characteristic is the user agent string, WHR. While there's really no restriction on the application and the corresponding user agent, it's uncommon that a legitimate application would expect unconventional user agent strings like WHR, as shown in Figure 1. Typically, all the exploit traffic tends to have normal user agent strings specifying the browsers and associated versions. The backdoor and malware, on the other hand, tend to use custom user agent strings. Coincidently, the user agent WHR can be found in a [repository](https://github.com/inc0d3/malware/blob/master/spam/wp-index-desofuscado.php) related to malware. ## Incident Two and Three: Comparison Figure 2 shows the second incident we observed on March 10, 2021, and figure 3 shows another incident caught on March 15, 2021. The malicious request, in comparison to the incident one, exhibits several similarities. It's the same attack pattern delivering the same cpuminer payload against the same industry (education), suggesting it's likely the same perpetrator behind the cryptojacking operation. ![Image shows code snippet from second incident of suspected cryptojacking operation](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/04/word-image-51.jpeg) Figure 2. Cpuminer payload discovered on March 10, 2021. ![Image shows code snippet from third incident of suspected cryptojacking operation](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/04/word-image-52.jpeg) Figure 3. Cpuminer payload discovered on March 15, 2021. Despite all the resemblances, there are still some differences worth noting. The first major difference is the user agent string, Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0). As mentioned above, a custom user agent can likely attract unnecessary attention. The act of using a common user agent string indicates that the perpetrator is attempting to blend in the malicious requests with the benign traffic and avoid detection. The second major difference is the presence of pass value, as opposed to the previous malicious request shown in Figure 1. This is likely employed to limit the backdoor usage to just the legitimate operator instead of anyone with the knowledge of the backdoor. The targeted victims are also different, even though they both are from the education sector. Incidents 1 and 2, as shown in Figures 1 and 2, targeted one education organization, while Incident 3, as shown in Figure 3, targeted another education organization. Aside from focusing on the same industry, the reasoning for selected targets remains unclear at this point. Last but not least is the wget payload. In addition to the same cpuminer payload, the backdoor command instructed the backdoor to download a mini shell pretending to be a legitimate [wp-load.php](https://github.com/WordPress/WordPress/blob/master/wp-load.php) file. Since the mini shell is not moved elsewhere, we speculate that the current directory of the mini shell, as well as the backdoor, is a web directory exposed to the internet. The ultimate goal of the attacker is to receive cryptocurrency at these wallet-specific addresses: "[CMsX5dXBq8nLPa2fkC9KX1mQiUgErYj7ai](https://explorer.cpuchain.org/address/CMsX5dXBq8nLPa2fkC9KX1mQiUgErYj7ai)" and "[sugar1q4aegj76eaeq9jwz3s5ct884grznwzx4wv7ah69](https://2explorer.sugarchain.org/address/sugar1q4aegj76eaeq9jwz3s5ct884grznwzx4wv7ah69)". With all these backdoor-like characteristics observed in the HTTP requests and features resembling [wso webshell](https://github.com/Josexv1/wso-webshell/blob/master/wso_v_4.2.5.php), it's evident that a backdoor command is being sent to a backdoor running on a compromised host. ## Cpuminer Payload The payload downloaded upon successful reception of the malicious request is an UPX-packed cpuminer. Just like any other malicious cryptominer, this sample will proceed to perform cryptojacking based on the given parameters. In Incident one, the cryptojacking fails because of a typo in the specified mining algorithm, cpupoer, as shown in Figure 4. Based on the help banner in the sample, the perpetrator meant to use cpupower algorithm for cryptojacking. ![Images shows the text error message "Unknown algo: cpuoer"](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/04/word-image-29.png) Figure 4. Cpuminer fails to run. In Incident two and three, the perpetrator chose a different algorithm, YespowerSugar. Since it's correctly spelled, the cpuminer payload will be executed by the backdoor upon successful receipt of the command request. ## Conclusion Cryptojacking is always going to be around, and so are the network attacks that make cryptojacking possible. While the attack vector for this installed backdoor remains unclear, Palo Alto Networks Next-Generation Firewall customers are protected from these attacks with the following security subscriptions: * [Threat Prevention](https://www.paloaltonetworks.com/products/secure-the-network/subscriptions/threat-prevention) can block the exploits and C2 traffic with best practice configuration. For tracking and protection purposes, [the relevant coverage threat ID](https://threatvault.paloaltonetworks.com/) is 90402. Please update to the latest threat detection release. * [WildFire](https://www.paloaltonetworks.com/products/secure-the-network/wildfire) can stop the malware with behavioral heuristics. * [AutoFocus](https://autofocus.paloaltonetworks.com/#/tag/Commodity.CoinMiner) can be used for tracking the UPX-packed miner and its variants. #### Indicators of Compromise ###### **Cpuminer (UPX packed)** 1adffca6b8da4af1556b0e4ba219babdf979be25ad45431eb2e233fdee0a8952 ###### **Mini Matamu Webshell** 770c34a2a7b0c58c861644caee402c02c091ea102820ad7df18a77f59a129682 ###### **Malware Hosting Site** 185\[.\]213\[.\]209\[.\]151 118\[.\]97\[.\]221\[.\]252 34\[.\]237\[.\]228\[.\]194 23\[.\]106\[.\]253\[.\]151 ###### **Mining Server URL** 135\[.\]181\[.\]62\[.\]60:4555 135\[.\]181\[.\]62\[.\]60:6238 stratum+tcp://ca-tor01\[.\]miningrigrentals\[.\]com:50209 Back to top ### Tags * [Cryptocurrency mining](https://unit42.paloaltonetworks.com/tag/cryptocurrency-mining/ "Cryptocurrency mining") * [Cryptojacking](https://unit42.paloaltonetworks.com/tag/cryptojacking/ "cryptojacking") * [Education organizations](https://unit42.paloaltonetworks.com/tag/education-organizations/ "education organizations") [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: Wireshark Tutorial: Examining Traffic from Hancitor Infections](https://unit42.paloaltonetworks.com/wireshark-tutorial-hancitor-followup-malware/ "Wireshark Tutorial: Examining Traffic from Hancitor Infections") ### Table of Contents * ### Related Articles * [Diving Into Glupteba's UEFI Bootkit](https://unit42.paloaltonetworks.com/glupteba-malware-uefi-bootkit/ "article - table of contents") * [CloudKeys in the Air: Tracking Malicious Operations of Exposed IAM Keys](https://unit42.paloaltonetworks.com/malicious-operations-of-exposed-iam-keys-cryptojacking/ "article - table of contents") * [Manic Menagerie 2.0: The Evolution of a Highly Motivated Threat Actor](https://unit42.paloaltonetworks.com/manic-menagerie-targets-web-hosting-and-it/ "article - table of contents") ## Related Cybercrime Resources ![Pictorial representation of Russian global webmail espionage campaign. A digital illustration of a world map in a network style, highlighting continents with glowing lines and connectivity points in a red and blue theme.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/07/06_Nation-State-cyberattacks_1920x900-1-786x368.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) July 23, 2026 [#### Russian Global Webmail Espionage](https://unit42.paloaltonetworks.com/russian-webmail-espionage/) * [CL-STA-1114](https://unit42.paloaltonetworks.com/tag/cl-sta-1114/ "CL-STA-1114") * [JavaScript](https://unit42.paloaltonetworks.com/tag/javascript/ "JavaScript") * [Javascript injection](https://unit42.paloaltonetworks.com/tag/javascript-injection/ "javascript injection") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/russian-webmail-espionage/ "Russian Global Webmail Espionage") ![Pictorial representation of a woman standing in a server room holding a laptop that projects a digital code overlay.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/05/06_Security-Technology_Category_1920x900-786x368.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) May 28, 2026 [#### 2026 World Cup: Discussing The World's Biggest Game's Attack Surface](https://unit42.paloaltonetworks.com/fifa-world-cup-attack-surface/) * [Fiddling Scorpius](https://unit42.paloaltonetworks.com/tag/fiddling-scorpius/ "Fiddling Scorpius") * [Fighting Ursa](https://unit42.paloaltonetworks.com/tag/fighting-ursa/ "Fighting Ursa") * [Muddled Libra](https://unit42.paloaltonetworks.com/tag/muddled-libra/ "Muddled Libra") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/fifa-world-cup-attack-surface/ "2026 World Cup: Discussing The World’s Biggest Game’s Attack Surface") ![Pictoral representation of a man holding a cellphone with a bokeh skyline in the background.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/05/05_Listicle_Category_1505x922-718x440.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) May 27, 2026 [#### Out of the Crypt: The Evolving Cyber Extortion Economy](https://unit42.paloaltonetworks.com/cyber-extortion-economy/) * [Bling Libra](https://unit42.paloaltonetworks.com/tag/bling-libra/ "Bling Libra") * [Extortion](https://unit42.paloaltonetworks.com/tag/extortion/ "Extortion") * [Frontier AI](https://unit42.paloaltonetworks.com/tag/frontier-ai/ "Frontier AI") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/cyber-extortion-economy/ "Out of the Crypt: The Evolving Cyber Extortion Economy") ![Pictorial representation of the APT Boggy Serpens. An illustrated blue snake is highlighted by a red circle against a night sky. The constellation serpens.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/03/Boggy-Serpens-1920x900-1-786x368.png) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) March 16, 2026 [#### Boggy Serpens Threat Assessment](https://unit42.paloaltonetworks.com/boggy-serpens-threat-assessment/) * [Advanced Persistent Threat](https://unit42.paloaltonetworks.com/tag/advanced-persistent-threat/ "Advanced Persistent Threat") * [Boggy Serpens](https://unit42.paloaltonetworks.com/tag/boggy-serpens/ "Boggy Serpens") * [C2](https://unit42.paloaltonetworks.com/tag/c2/ "C2") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/boggy-serpens-threat-assessment/ "Boggy Serpens Threat Assessment") ![Pictorial representation of Muddled Libra, aka Scattered Spider. A vibrant illustration of the Libra zodiac sign, featuring a stylized balance scale overlaid with a prominent Libra symbol. The background is a starry night sky with shades of purple and blue, suggesting a cosmic theme.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/03-1-Muddle-Libra-1920x900-1-786x368.png) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/threat-actor-groups.svg)Threat Actor Groups](https://unit42.paloaltonetworks.com/category/threat-actor-groups/) February 10, 2026 [#### A Peek Into Muddled Libra's Operational Playbook](https://unit42.paloaltonetworks.com/muddled-libra-ops-playbook/) * [Muddled Libra](https://unit42.paloaltonetworks.com/tag/muddled-libra/ "Muddled Libra") * [PowerShell](https://unit42.paloaltonetworks.com/tag/powershell/ "PowerShell") * [Scattered Spider](https://unit42.paloaltonetworks.com/tag/scattered-spider/ "Scattered Spider") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/muddled-libra-ops-playbook/ "A Peek Into Muddled Libra’s Operational Playbook") ![Pictorial representation of a group of individuals discussing an idea with a whiteboard.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/02_Listicle_Overview_1920x900-786x368.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) February 3, 2026 [#### Why Smart People Fall For Phishing Attacks](https://unit42.paloaltonetworks.com/psychology-of-phishing/) * [AI](https://unit42.paloaltonetworks.com/tag/ai/ "AI") * [Phishing](https://unit42.paloaltonetworks.com/tag/phishing/ "phishing") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/psychology-of-phishing/ "Why Smart People Fall For Phishing Attacks") ![Pictorial representation of threat groups from Russia. The silhouette of a bear and the Ursa constellation inside an orange abstract planet. Abstract, stylized cosmic setting with vibrant blue and purple shapes, representing space and distant planetary bodies.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/01/Ursa-Russia-B-1920x900-1-786x368.png) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/category/insights/) January 29, 2026 [#### Understanding the Russian Cyberthreat to the 2026 Winter Olympics](https://unit42.paloaltonetworks.com/russian-cyberthreat-2026-winter-olympics/) * [AI](https://unit42.paloaltonetworks.com/tag/ai/ "AI") * [IoT](https://unit42.paloaltonetworks.com/tag/iot/ "IoT") * [Russia](https://unit42.paloaltonetworks.com/tag/russia/ "Russia") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/russian-cyberthreat-2026-winter-olympics/ "Understanding the Russian Cyberthreat to the 2026 Winter Olympics") ![Pictorial representation of 01flip ransomware written in Rust. Digital artwork of a pixelated U.S. dollar bill disintegrating into small blocks against a blue data matrix background.](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/12/05_Ransomware_Category_1920x900-786x368.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) December 10, 2025 [#### 01flip: Multi-Platform Ransomware Written in Rust](https://unit42.paloaltonetworks.com/new-ransomware-01flip-written-in-rust/) * [Bitcoin](https://unit42.paloaltonetworks.com/tag/bitcoin/ "Bitcoin") * [CL-CRI-103](https://unit42.paloaltonetworks.com/tag/cl-cri-103/ "CL-CRI-103") * [Cryptocurrency](https://unit42.paloaltonetworks.com/tag/cryptocurrency/ "Cryptocurrency") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/new-ransomware-01flip-written-in-rust/ "01flip: Multi-Platform Ransomware Written in Rust") ![Pictorial representation of malicious LLMs. Close-up view of a digital wall displaying various glowing icons, representing a high-tech network interface.](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/11/AdobeStock_1270203474-786x440.jpeg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) November 25, 2025 [#### The Dual-Use Dilemma of AI: Malicious LLMs](https://unit42.paloaltonetworks.com/dilemma-of-ai-malicious-llms/) * [Credential Harvesting](https://unit42.paloaltonetworks.com/tag/credential-harvesting/ "Credential Harvesting") * [Data exfiltration](https://unit42.paloaltonetworks.com/tag/data-exfiltration/ "data exfiltration") * [LLM](https://unit42.paloaltonetworks.com/tag/llm/ "LLM") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/dilemma-of-ai-malicious-llms/ "The Dual-Use Dilemma of AI: Malicious LLMs") ![Pictorial representation of Gh0st RAT malware. A woman analyzes code on a computer screen in an office setting, with another individual working in the background.](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/11/04_Security-Technology_Category_1505x922-718x440.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)Threat Research](https://unit42.paloaltonetworks.com/category/threat-research/) November 14, 2025 [#### Digital Doppelgangers: Anatomy of Evolving Impersonation Campaigns Distributing Gh0st RAT](https://unit42.paloaltonetworks.com/impersonation-campaigns-deliver-gh0st-rat/) * [DLL Sideloading](https://unit42.paloaltonetworks.com/tag/dll-sideloading/ "DLL Sideloading") * [Gh0st Rat](https://unit42.paloaltonetworks.com/tag/gh0st-rat/ "Gh0st Rat") * [PDNS](https://unit42.paloaltonetworks.com/tag/pdns/ "PDNS") [Read now ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/impersonation-campaigns-deliver-gh0st-rat/ "Digital Doppelgangers: Anatomy of Evolving Impersonation Campaigns Distributing Gh0st RAT") * ![Slider arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/slider-arrow-left.svg) * ![Slider arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/slider-arrow-left.svg) ![Close button](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/close-modal.svg) ![Enlarged Image]() ![Newsletter](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/03/unit42-footer-subscribe-desktop.png) ![UNIT 42 Small Logo](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/palo-alto-logo-small.svg) Get updates from Unit 42 ## Peace of mind comes from staying ahead of threats. Subscribe today. Your Email Subscribe for email updates to all Unit 42 threat research. By submitting this form, you agree to our [Terms of Use](https://www.paloaltonetworks.com/legal-notices/terms-of-use "Terms of Use") and acknowledge our [Privacy Statement.](https://www.paloaltonetworks.com/legal-notices/privacy "Privacy Statement") This site is protected by reCAPTCHA and the Google [Privacy Policy](https://policies.google.com/privacy) and [Terms of Service](https://policies.google.com/terms) apply. Invalid captcha! Subscribe ![Right Arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/right-arrow.svg) ![loader](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-loader.svg) {#footer} Products and Services * [AI-Powered Network Security Platform](https://www.paloaltonetworks.com/network-security) * [Secure AI by Design](https://www.paloaltonetworks.com/ai-security) * [Prisma AIRS](https://www.paloaltonetworks.com/ai-security/prisma-airs) * [AI Access Security](https://www.paloaltonetworks.com/sase/ai-access-security) * [Cloud Delivered Security Services](https://www.paloaltonetworks.com/network-security/security-subscriptions) * [Advanced Threat Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention) * [Advanced URL Filtering](https://www.paloaltonetworks.com/network-security/advanced-url-filtering) * [Advanced WildFire](https://www.paloaltonetworks.com/network-security/advanced-wildfire) * [Advanced DNS Security](https://www.paloaltonetworks.com/network-security/advanced-dns-security) * [Enterprise Data Loss Prevention](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention) * [Enterprise IoT Security](https://www.paloaltonetworks.com/network-security/enterprise-device-security) * [Medical IoT Security](https://www.paloaltonetworks.com/network-security/medical-device-security) * [Industrial OT Security](https://www.paloaltonetworks.com/network-security/ot-security-solution) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security) * [Next-Generation Firewalls](https://www.paloaltonetworks.com/network-security/next-generation-firewall) * [Hardware Firewalls](https://www.paloaltonetworks.com/network-security/hardware-firewall-innovations) * [Software Firewalls](https://www.paloaltonetworks.com/network-security/software-firewalls) * [Strata Cloud Manager](https://www.paloaltonetworks.com/network-security/strata-cloud-manager) * [SD-WAN for NGFW](https://www.paloaltonetworks.com/network-security/sd-wan-subscription) * [PAN-OS](https://www.paloaltonetworks.com/network-security/pan-os) * [Panorama](https://www.paloaltonetworks.com/network-security/panorama) * [Secure Access Service Edge](https://www.paloaltonetworks.com/sase) * [Prisma SASE](https://www.paloaltonetworks.com/sase) * [Application Acceleration](https://www.paloaltonetworks.com/sase/app-acceleration) * [Autonomous Digital Experience Management](https://www.paloaltonetworks.com/sase/adem) * [Enterprise DLP](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention) * [Prisma Access](https://www.paloaltonetworks.com/sase/access) * [Prisma Browser](https://www.paloaltonetworks.com/sase/prisma-browser) * [Prisma SD-WAN](https://www.paloaltonetworks.com/sase/sd-wan) * [Remote Browser Isolation](https://www.paloaltonetworks.com/sase/remote-browser-isolation) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security) * [AI-Driven Security Operations Platform](https://www.paloaltonetworks.com/cortex) * [Cloud Security](https://www.paloaltonetworks.com/cortex/cloud) * [Cortex Cloud](https://www.paloaltonetworks.com/cortex/cloud) * [Application Security](https://www.paloaltonetworks.com/cortex/cloud/application-security) * [Cloud Posture Security](https://www.paloaltonetworks.com/cortex/cloud/cloud-posture-security) * [Cloud Runtime Security](https://www.paloaltonetworks.com/cortex/cloud/runtime-security) * [Prisma Cloud](https://www.paloaltonetworks.com/prisma/cloud) * [AI-Driven SOC](https://www.paloaltonetworks.com/cortex) * [Cortex XSIAM](https://www.paloaltonetworks.com/cortex/cortex-xsiam) * [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr) * [Cortex XSOAR](https://www.paloaltonetworks.com/cortex/cortex-xsoar) * [Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse) * [Unit 42 Managed Detection \& Response](https://www.paloaltonetworks.com/cortex/managed-detection-and-response) * [Managed XSIAM](https://www.paloaltonetworks.com/cortex/managed-xsiam) * [Next-Generation Identity Security](https://www.paloaltonetworks.com/idira) * [Privileged Access Management](https://www.paloaltonetworks.com/idira/human/privileged-access-management) * [Identity and Access Management](https://www.paloaltonetworks.com/idira/human/identity-and-access-management) * [Endpoint Privilege Manager](https://www.paloaltonetworks.com/idira/human/endpoint-privilege-manager) * [Identity Governance](https://www.paloaltonetworks.com/idira/human/identity-governance) * [Workforce Password Management](https://www.paloaltonetworks.com/idira/human/workforce-password-management) * [Agentic Identities](https://www.paloaltonetworks.com/idira/agentic) * [Secrets Management](https://www.paloaltonetworks.com/idira/machine/secrets-management) * [Unified Secrets Governance](https://www.paloaltonetworks.com/idira/machine/unified-secrets-governance) * [Application Credentials Delivery](https://www.paloaltonetworks.com/idira/machine/application-credentials-delivery) * [Vendor Privileged Access](https://www.paloaltonetworks.com/idira/human/vendor-privileged-access) * [Threat Intel and Incident Response Services](https://www.paloaltonetworks.com/unit42) * [Prepare for Emerging Risks](https://www.paloaltonetworks.com/unit42/frontier-ai-defense) * [Strengthen Your Defenses](https://www.paloaltonetworks.com/unit42/strengthen-your-defenses) * [Build Your Security Strategy](https://www.paloaltonetworks.com/unit42/build-your-security-strategy) * [Understand the Adversary](https://www.paloaltonetworks.com/unit42/threat-intelligence) * [Respond to a Cyber Attack](https://www.paloaltonetworks.com/unit42/respond) Company * [About Us](https://www.paloaltonetworks.com/about-us) * [Careers](https://jobs.paloaltonetworks.com/en/) * [Contact Us](https://www.paloaltonetworks.com/company/contact-sales) * [Corporate Responsibility](https://www.paloaltonetworks.com/about-us/corporate-responsibility) * [Customers](https://www.paloaltonetworks.com/customers) * [Investor Relations](https://investors.paloaltonetworks.com/) * [Location](https://www.paloaltonetworks.com/about-us/locations) * [Newsroom](https://www.paloaltonetworks.com/company/newsroom) Popular Links * [Blog](https://www.paloaltonetworks.com/blog/) * [Communities](https://www.paloaltonetworks.com/communities) * [Content Library](https://www.paloaltonetworks.com/resources) * [Cyberpedia](https://www.paloaltonetworks.com/cyberpedia) * [Event Center](https://events.paloaltonetworks.com/) * [Manage Email Preferences](https://start.paloaltonetworks.com/preference-center) * [Products A-Z](https://www.paloaltonetworks.com/products/products-a-z) * [Product Certifications](https://www.paloaltonetworks.com/legal-notices/trust-center/certifications) * [Report a Vulnerability](https://www.paloaltonetworks.com/security-disclosure) * [Sitemap](https://www.paloaltonetworks.com/sitemap) * [Tech Docs](https://docs.paloaltonetworks.com/) * [Unit 42](https://unit42.paloaltonetworks.com/) * [Do Not Sell or Share My Personal Information](https://panwedd.exterro.net/portal/dsar.htm?target=panwedd) ![Palo Alto Networks Logo](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/pan-logo-dark.svg) * [Privacy](https://www.paloaltonetworks.com/legal-notices/privacy) * [Trust Center](https://www.paloaltonetworks.com/legal-notices/trust-center) * [Terms of Use](https://www.paloaltonetworks.com/legal-notices/terms-of-use) * [Documents](https://www.paloaltonetworks.com/legal) Copyright © 2026 Palo Alto Networks. All Rights Reserved * [![Youtube](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/youtube-black.svg)](https://www.youtube.com/user/paloaltonetworks) * [![Podcast](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/icons/podcast.svg)](https://www.paloaltonetworks.com/podcasts/threat-vector) * [![Facebook](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/facebook-black.svg)](https://www.facebook.com/PaloAltoNetworks/) * [![LinkedIn](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/linkedin-black.svg)](https://www.linkedin.com/company/palo-alto-networks) * [![Twitter](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/twitter-x-black.svg)](https://twitter.com/PaloAltoNtwks) * EN Select your language ![Play](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/player-play-icon.svg) ![Pause](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/player-pause-icon1.svg) ![Minimize](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-minimize.svg) ![Close button](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/close-modal.svg) ### Default Heading Read the article ![Right Arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/right-arrow.svg) Seekbar ![Play](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/player-play-icon.svg) ![Pause](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/player-pause-icon1.svg) ![Volume](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-volume.svg) Volume ![Minimize](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-minimize.svg)