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Ransomware Threat Assessments: A Companion to the 2021 Unit 42 Ransomware Threat Report ![Clock Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-clock.svg) 30 min read * ![Profile Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-profile-grey.svg) By: * [Unit 42](https://unit42.paloaltonetworks.com/author/unit42/) * ![Published Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-calendar-grey.svg) Published:March 17, 2021 * ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-category.svg) Categories: * [High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) * [Malware](https://unit42.paloaltonetworks.com/category/malware/) * [Ransomware](https://unit42.paloaltonetworks.com/category/ransomware/) * [Trend Reports](https://unit42.paloaltonetworks.com/category/trend-reports/) * ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-tags-grey.svg) Tags: * [Defray777](https://unit42.paloaltonetworks.com/tag/defray777/) * [Dharma](https://unit42.paloaltonetworks.com/tag/dharma/) * [DoppelPaymer](https://unit42.paloaltonetworks.com/tag/doppelpaymer/) * [GandCrab](https://unit42.paloaltonetworks.com/tag/gandcrab/) * [NetWalker](https://unit42.paloaltonetworks.com/tag/netwalker/) * [Phobos](https://unit42.paloaltonetworks.com/tag/phobos/) * [Ransomware threat report](https://unit42.paloaltonetworks.com/tag/ransomware-threat-report/) * [REvil](https://unit42.paloaltonetworks.com/tag/revil/) * [Zeppelin](https://unit42.paloaltonetworks.com/tag/zeppelin/) * [![Download Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-download.svg)](https://unit42.paloaltonetworks.com/ransomware-threat-assessments/?pdf=download&lg=en&_wpnonce=dc23a6ba65 "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/ransomware-threat-assessments/?pdf=print&lg=en&_wpnonce=dc23a6ba65 "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=Ransomware%20Threat%20Assessments:%20A%20Companion%20to%20the%202021%20Unit%2042%20Ransomware%20Threat%20Report&body=Check%20out%20this%20article%20https%3A%2F%2Funit42.paloaltonetworks.com%2Fransomware-threat-assessments%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%2Fransomware-threat-assessments%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%2Fransomware-threat-assessments%2F&title=Ransomware%20Threat%20Assessments:%20A%20Companion%20to%20the%202021%20Unit%2042%20Ransomware%20Threat%20Report "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%2Fransomware-threat-assessments%2F&text=Ransomware%20Threat%20Assessments:%20A%20Companion%20to%20the%202021%20Unit%2042%20Ransomware%20Threat%20Report "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%2Fransomware-threat-assessments%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=Ransomware%20Threat%20Assessments:%20A%20Companion%20to%20the%202021%20Unit%2042%20Ransomware%20Threat%20Report%20https%3A%2F%2Funit42.paloaltonetworks.com%2Fransomware-threat-assessments%2F "Share in Mastodon") ## *Threat Assessment: Dharma Ransomware* ### Executive Summary Dharma, aka CrySIS or Wadhrama, is a ransomware family [first identified publicly in 2016](https://www.cyber.nj.gov/threat-center/threat-profiles/ransomware-variants/crysis-dharma). Dharma targets Windows hosts at organizations in several ways, including malicious attachments in phishing emails. Dharma has served as the code base for later ransomware families, such as [Phobos](https://blog.malwarebytes.com/threat-analysis/2019/07/a-deep-dive-into-phobos-ransomware/), which was discovered in 2019. Additionally, the actors behind Dharma have leveraged disguised installers that appear to be legitimate software installers, such as antivirus software. In addition to Dharma being distributed in spam emails and malicious installers, Dharma is also distributed to victims via exposed, vulnerable or brute-forced Remote Desktop Protocol (RDP) services. ### Dharma Ransomware Overview ![Conceptual image representing Dharma ransomware as part of the ransomware threat assessments companion to the 2021 Unit 42 Ransomware Threat Report.](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/03/Ransomware-series-21-illustration_Dharma.png) Dharma is routinely distributed or sold as a ransomware-as-a-service (RaaS) offering on underground forums and social networks. ![Figure 1. Dharma RaaS posting on a popular underground marketplace (source: Sophos).](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/03/word-image-81.png) Figure 1. Dharma RaaS posting on a popular underground marketplace (source: Sophos). After Dharma completes encryption of victim files, Dharma drops a ransom note on the desktop that contains an email address to contact with a desired ransom amount. Average ransom amount paid in 2020 was $7,801, with some variance in ransoms demanded occurring based on the target's organizational size. Upon encryption of infected files, the following file extensions have been observed appended to the file name: .crysis, .dharma, wallet, .java, .adobe, .viper1, .write, .bip, .zzzzz, .viper2, .arrow, .gif, .xtbl, .onion, .bip, .cezar, .combo, .cesar, .cmb, .AUF, .arena, .brrr, .btc, .cobra, .gamma, .heets, .java, .monro, .USA, .bkp, .xwx, .btc, .best, .bgtx, .boost, .heets, .waifu, .qwe, .gamma, .ETH, .bet, ta, .air, .vanss, . 888, .FUNNY, .amber, .gdb, .frend, .like, .KARLS, .xxxxx, .aqva, .lock, .korea, .plomb, .tron, .NWA, .AUDIT, .com, .cccmn, .azero, .Bear, .bk666, .fire, .stun, .myjob, .ms13, .war, .carcn, .risk, .btix, .bkpx, .he, .ets, .santa, .gate, .bizer, .LOVE, .LDPR, .MERS, .bat, .qbix, .aa1, and .wal ![Figure 2. Dharma ransom page.](https://unit42.paloaltonetworks.com/wp-content/uploads/2021/03/word-image-82.png) Figure 2. Dharma ransom page. Like many ransomware families found in the wild today, Dharma shares several actor and code similarities with other families (i.e. Phobos). Both families share the same ransom note post-infection. Additionally, initial correspondence from the victim to both actors is the same. There are, however, several code differences between Dharma and Phobos, namely in the file structure. Palo Alto Networks observed victims in the insurance, transportation and logistics, high tech, healthcare and government sectors, mainly focused on small and mid-sized businesses. Victims were located in the U.S., Italy, Japan and India. More information on Dharma victimology can be found in the [2021 Unit 42 Ransomware Threat Report](https://start.paloaltonetworks.com/unit-42-ransomware-threat-report). ### Courses of Action This section documents relevant tactics, techniques and procedures (TTPs) used with Dharma and maps them directly to Palo Alto Networks product(s) and service(s). It also further instructs customers on how to ensure their devices are configured correctly. |-----------------------|------------------------------------------------------------------------------------------------------------------------| | **Product / Service** | **Courses of Action** | | **Defense Evasion, Persistence, Privilege Escalation, Discovery** || | **Mshta \[T1218.005\], Registry Run Keys / Startup Folder \[T1547.001\], Process Injection \[T1055\], DLL Search Order Hijacking \[T1574.001\], Software Packing \[T1027.002\], Masquerading \[T1036\], Modify Registry \[T1112\], Bypass User Access Control \[T1548.002\], Process Discovery \[T1057\], Process Hollowing \[T1055.012\]** || | NGFW | Ensure application security policies exist when allowing traffic from an untrusted zone to a more trusted zone | | NGFW | Ensure 'Service setting of ANY' in a security policy allowing traffic does not exist | | NGFW | Ensure 'Security Policy' denying any/all traffic to/from IP addresses on Trusted Threat Intelligence Sources Exists | | DNS Security | Enable DNS Security in Anti-Spyware profile | | URL Filtering | Ensure that URL Filtering is used | | URL Filtering | Ensure that URL Filtering uses the action of 'block' or 'override' on the \ URL categories | | URL Filtering | Ensure that access to every URL is logged | | URL Filtering | Ensure all HTTP Header Logging options are enabled | | URL Filtering | Ensure secure URL filtering is enabled for all security policies allowing traffic to the internet | | Cortex XDR Prevent | Enable Anti-Malware Protection | | Cortex XSOAR | Deploy XSOAR Playbook - Endpoint Malware Investigation | | Threat Prevention | Ensure that antivirus profiles are set to block on all decoders except 'imap' and 'pop3' | | Threat Prevention | Ensure a secure antivirus profile is applied to all relevant security policies | | WildFire | Ensure that WildFire file size upload limits are maximized | | WildFire | Ensure forwarding is enabled for all applications and file types in WildFire file blocking profiles | | WildFire | Ensure a WildFire Analysis profile is enabled for all security policies | | WildFire | Ensure forwarding of decrypted content to WildFire is enabled | | WildFire | Ensure all WildFire session information settings are enabled | | WildFire | Ensure alerts are enabled for malicious files detected by WildFire | | WildFire | Ensure 'WildFire Update Schedule' is set to download and install updates every minute | | Cortex XDR Prevent | Configure Behavioral Threat Protection under the Malware Security Profile | | Cortex XDR Prevent | Enable Anti-Exploit Protection | | **Lateral Movement** || | **Replication Through Removable Media \[T1091\]** || | Cortex XDR Prevent | Enable Device Control | | **Impact** || | **Inhibit System Recovery \[T1490\], Data Encrypted for Impact \[T1486\]** || | Cortex XSOAR | Deploy XSOAR Playbook - Palo Alto Networks Endpoint Malware Investigation | | Cortex XSOAR | Deploy XSOAR Playbook - Ransomware Manual for incident response. | ^*Table 1. Courses of Action for Dharma ransomware.*^^*†These capabilities are part of the NGFW security subscriptions service.*^ ### Conclusion Similar to many ransomware families Unit 42 tracks daily, Dharma shares several actor and code similarities with the Phobos ransomware family. Dharma is particularly loathsome ransomware because many organizations across the globe rely on its initial infection vector (RDP). The impact a group of determined attackers can have against organizations -- and the actors' code and infrastructure reuse -- can be devastating. Palo Alto Networks detects and prevents Dharma in the following ways: * [WildFire](https://www.paloaltonetworks.com/products/secure-the-network/wildfire): All known samples are identified as malware. * [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr) with: * Indicators for Dharma. * Anti-Ransomware Module to detect Dharma encryption behaviors. * Local Analysis detection to detect Dharma binaries. * [Next-Generation Firewalls](https://www.paloaltonetworks.com/network-security/next-generation-firewall): DNS Signatures detect the known command and control (C2) domains, which are also categorized as malware in [URL Filtering](https://www.paloaltonetworks.com/products/threat-detection-and-prevention/web-security). * [AutoFocus](https://www.paloaltonetworks.com/cortex/autofocus): Tracking related activity using the [Dharma](https://autofocus.paloaltonetworks.com/#/tag/Unit42.Dharma) tag. Additionally, Indicators of Compromise (IoCs) associated with Dharma are available on [GitHub](https://github.com/pan-unit42/iocs), and have been published to the Unit 42 TAXII [feed](https://github.com/pan-unit42/iocs/tree/master/stix2-reports/report_json). ### Additional Resources * [Color by numbers: inside a Dharma ransomware-as-a-service attack](https://news.sophos.com/en-us/2020/08/12/color-by-numbers-inside-a-dharma-ransomware-as-a-service-attack/) * [A deep dive into Phobos ransomware](https://blog.malwarebytes.com/threat-analysis/2019/07/a-deep-dive-into-phobos-ransomware/) * [NJCCIC Threat Profile](https://www.cyber.nj.gov/threat-center/threat-profiles/ransomware-variants/crysis-dharma) ***Continue Reading: [GandCrab \& REvil](https://unit42.paloaltonetworks.com/ransomware-threat-assessments/7)*** ***[Back to Top](https://unit42.paloaltonetworks.com/ransomware-threat-assessments/)*** Back to top ### Tags * [Defray777](https://unit42.paloaltonetworks.com/tag/defray777/ "Defray777") * [Dharma](https://unit42.paloaltonetworks.com/tag/dharma/ "Dharma") * [DoppelPaymer](https://unit42.paloaltonetworks.com/tag/doppelpaymer/ "DoppelPaymer") * [GandCrab](https://unit42.paloaltonetworks.com/tag/gandcrab/ "GandCrab") * [NetWalker](https://unit42.paloaltonetworks.com/tag/netwalker/ "NetWalker") * [Phobos](https://unit42.paloaltonetworks.com/tag/phobos/ "Phobos") * [Ransomware threat report](https://unit42.paloaltonetworks.com/tag/ransomware-threat-report/ "ransomware threat report") * [REvil](https://unit42.paloaltonetworks.com/tag/revil/ "REvil") * [Zeppelin](https://unit42.paloaltonetworks.com/tag/zeppelin/ "Zeppelin") [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: Highlights from the 2021 Unit 42 Ransomware Threat Report](https://unit42.paloaltonetworks.com/ransomware-threat-report-highlights/ "Highlights from the 2021 Unit 42 Ransomware Threat Report") ### Table of Contents * ### Related Articles * [Unit 42 Ransomware and Extortion Report Highlights: Multi-Extortion Tactics Continue to Rise](https://unit42.paloaltonetworks.com/multi-extortion-rise-ransomware-report/ "article - table of contents") * [Ransom Cartel Ransomware: A Possible Connection With REvil](https://unit42.paloaltonetworks.com/ransom-cartel-ransomware/ "article - table of contents") * [Understanding REvil: REvil Threat Actors May Have Returned (Updated)](https://unit42.paloaltonetworks.com/revil-threat-actors/ "article - table of contents") ## Related Resources ![Pictorial representation of a magnifying glass illuminating a glowing orange circular digital circuit interface on a dark, high-tech background.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/04_Myth-Busting_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/) September 16, 2026 [#### Atomic macOS (AMOS) Stealer Activity](https://unit42.paloaltonetworks.com/atomic-macos-amos-stealer-activity/) * [MacOS](https://unit42.paloaltonetworks.com/tag/macos/ "macOS") * [Threat intelligence](https://unit42.paloaltonetworks.com/tag/threat-intelligence/ "threat intelligence") * [Unit 42](https://unit42.paloaltonetworks.com/tag/unit-42/ "Unit 42") [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/atomic-macos-amos-stealer-activity/ "Atomic macOS (AMOS) Stealer Activity") ![Pictorial representation of post-exploitation identity misuse in SPIFFE/SPIRE. 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A close-up of a computer circuit board with a central microchip is depicted. Red digital data streams in the form of glowing binary numbers and arrows appear to flow in and out of the chip, symbolizing data processing and transfer. The scene is illuminated with a futuristic blue and red glow.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/04_Malware_Category_1920x900-6-786x368.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/) September 9, 2026 [#### Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure](https://unit42.paloaltonetworks.com/ppi-network-malware-campaign-analysis/) * [ARKTunnel](https://unit42.paloaltonetworks.com/tag/arktunnel/ "ARKTunnel") * [C2](https://unit42.paloaltonetworks.com/tag/c2/ "C2") * [CL-CRI-1171](https://unit42.paloaltonetworks.com/tag/cl-cri-1171/ "CL-CRI-1171") [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/ppi-network-malware-campaign-analysis/ "Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure") ![Pictorial representation of attackers using AI tools to target Latin American organizations. 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The scene is illuminated by bright urban lights and digital-like particles, creating a dynamic and futuristic atmosphere.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/09/AdobeStock_768915868-2-1-786x373.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/) September 3, 2026 [#### Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America](https://unit42.paloaltonetworks.com/ai-tool-use-targeting-latam-orgs/) * [Agentic AI](https://unit42.paloaltonetworks.com/tag/agentic-ai/ "Agentic AI") * [ChatGPT](https://unit42.paloaltonetworks.com/tag/chatgpt/ "ChatGPT") * [CL-CRI-1131](https://unit42.paloaltonetworks.com/tag/cl-cri-1131/ "CL-CRI-1131") [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/ai-tool-use-targeting-latam-orgs/ "Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America") ![Pictorial representation of vishing campaigns in Microsoft Teams. 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A vibrant digital interface displaying various icons and graphs, resembling a futuristic network or data analysis dashboard. The scene is illuminated with glowing lights and patterns.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/AdobeStock_1270203474-2-1-786x368.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/) August 25, 2026 [#### The State of AI-Enabled Malware August 2026: From Brand Abuse to Agentic Execution](https://unit42.paloaltonetworks.com/ai-enabled-malware-analysis/) * [Backdoor](https://unit42.paloaltonetworks.com/tag/backdoor/ "backdoor") * [Bitcoin](https://unit42.paloaltonetworks.com/tag/bitcoin/ "Bitcoin") * [DLL hijacking](https://unit42.paloaltonetworks.com/tag/dll-hijacking/ "DLL hijacking") [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/ai-enabled-malware-analysis/ "The State of AI-Enabled Malware August 2026: From Brand Abuse to Agentic Execution") ![Pictorial representation of identity abuse through trusted communication channels. Close-up view of a digital screen displaying a glitched and pixelated image of a skull-like shape.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/02_Malware_Category_1920x900-2-786x368.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/) August 20, 2026 [#### Identity Abuse Through Trusted Communication Channels](https://unit42.paloaltonetworks.com/communication-channel-identity-risks/) * [Authentication](https://unit42.paloaltonetworks.com/tag/authentication/ "authentication") * [Identity theft](https://unit42.paloaltonetworks.com/tag/identity-theft/ "identity theft") * [Malware](https://unit42.paloaltonetworks.com/tag/malware/ "malware") [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/communication-channel-identity-risks/ "Identity Abuse Through Trusted Communication Channels") ![Pictorial representation of Kimwolf botnet malware family. Digital screen with a warning sign reading "Malware." The background features lines of computer code and graphics, creating a sense of cybersecurity threat.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/07_Malware_Category_1920x900-3-786x368.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/) August 11, 2026 [#### Kimwolf v7: An Evolution of the Kimwolf Botnet](https://unit42.paloaltonetworks.com/kimwolf-v7-botnet-malware/) * [Android APK](https://unit42.paloaltonetworks.com/tag/android-apk/ "Android APK") * [Ethereum](https://unit42.paloaltonetworks.com/tag/ethereum/ "Ethereum") * [HTTP](https://unit42.paloaltonetworks.com/tag/http/ "HTTP") [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/kimwolf-v7-botnet-malware/ "Kimwolf v7: An Evolution of the Kimwolf Botnet") ![Pictorial representatiom pf Aeternum's blockchain C2. A close-up of a computer circuit board with a central microchip is depicted. Red digital data streams in the form of glowing binary numbers and arrows appear to flow in and out of the chip. The scene is illuminated with a futuristic blue and red glow.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/04_Malware_Category_1920x900-4-786x368.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/) August 10, 2026 [#### The Permanent Threat: Analyzing Aeternum's Blockchain-Based C2 Operations and Communications](https://unit42.paloaltonetworks.com/aeternum-blockchain-c2-analysis/) * [Aeternum](https://unit42.paloaltonetworks.com/tag/aeternum/ "Aeternum") * [Infection chain](https://unit42.paloaltonetworks.com/tag/infection-chain/ "infection chain") * [JSON](https://unit42.paloaltonetworks.com/tag/json/ "JSON") [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/aeternum-blockchain-c2-analysis/ "The Permanent Threat: Analyzing Aeternum’s Blockchain-Based C2 Operations and Communications") ![Pictorial representation of ChainDrop, a self-propagating npm worm. An artistic depiction of a digital workspace featuring an open laptop with a red virus on the screen.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/03_Malware_Category_1920x900-7-786x368.jpg) [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)High Profile Threats](https://unit42.paloaltonetworks.com/category/top-cyberthreats/) August 6, 2026 [#### ChainDrop: Inside a Self-Propagating npm Worm](https://unit42.paloaltonetworks.com/chaindrop-npm-worm-analysis/) * [Blockchain](https://unit42.paloaltonetworks.com/tag/blockchain/ "blockchain") * [ChainDrop](https://unit42.paloaltonetworks.com/tag/chaindrop/ "ChainDrop") * [Claude code](https://unit42.paloaltonetworks.com/tag/claude-code/ "Claude code") [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/chaindrop-npm-worm-analysis/ "ChainDrop: Inside a Self-Propagating npm Worm") * ![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. 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