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[Business Email Compromise](https://unit42.paloaltonetworks.com/category/business-email-compromise/ "Business Email Compromise") [Business Email Compromise](https://unit42.paloaltonetworks.com/category/business-email-compromise/) # Operation Delilah: Unit 42 Helps INTERPOL Identify Nigerian Business Email Compromise Actor ![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 URL Filtering icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/strata_RGB_logo_Icon_Color.png)Advanced URL Filtering](https://unit42.paloaltonetworks.com/product-category/advanced-url-filtering/ "Advanced URL Filtering")[![Advanced 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[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: * [Nigeria](https://unit42.paloaltonetworks.com/tag/nigeria/) * [SilverTerrier](https://unit42.paloaltonetworks.com/tag/silverterrier/) * [Syndicate Orion](https://unit42.paloaltonetworks.com/tag/syndicate-orion/) * [![Download Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-download.svg)](https://unit42.paloaltonetworks.com/operation-delilah-business-email-compromise-actor/?pdf=download&lg=en&_wpnonce=64814e76fb "Click here to download") * [![Print 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His apprehension marks the latest success for Operation Delilah - a counter-BEC operation that began in May 2021 and has involved international law enforcement and industry cooperation across four continents. BEC remains the most common and most costly threat facing organizations globally. This threat held the top spot for the sixth year in a row on the 2021 FBI Internet Crime Complaint Center (IC3) [report](https://www.ic3.gov/Media/PDF/AnnualReport/2021_IC3Report.pdf). Over half a decade, global losses have ballooned from $360 million in 2016 to a staggering $2.3 billion in 2021. Despite these massive loss amounts, industry and global law enforcement continue to make considerable strides toward thwarting this activity. Unit 42 tracks Nigerian BEC actors under the name SilverTerrier. Following the arrest of 11 BEC actors as part of [Operation Falcon II](https://unit42.paloaltonetworks.com/operation-falcon-ii-silverterrier-nigerian-bec/) in December 2021, this recent operation is significant in that it demonstrates the resolve of global law enforcement to hold BEC actors accountable despite temporary setbacks. Specifically, in this case, the SilverTerrier actor fled Nigeria in 2021 when authorities initially attempted to apprehend him. Months later, in March 2022, he attempted to return home and was quickly identified and detained as he attempted to re-enter Nigeria. This level of international cooperation, tracking of actors as they travel internationally and subsequent apprehension of actors upon returning to their home countries represents a laudable advancement in the ability of global law enforcement organizations to combat these types of crimes. Palo Alto Networks Unit 42 was thanked for its collaboration with INTERPOL in Operation Delilah. The team provided telemetry and other insights about BEC actors. This blog provides a brief overview of the actor's activities and provides recommendations to help organizations protect against these threats. Palo Alto Networks customers are protected against the types of BEC threats discussed in this blog by products including [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr) and the [WildFire](https://www.paloaltonetworks.com/products/secure-the-network/wildfire), [Threat Prevention](https://www.paloaltonetworks.com/products/secure-the-network/subscriptions/threat-prevention), [AutoFocus](https://www.paloaltonetworks.com/cortex/autofocus) and [Advanced URL Filtering](https://www.paloaltonetworks.com/network-security/advanced-url-filtering) subscription services for the [Next-Generation Firewall](https://www.paloaltonetworks.com/network-security/next-generation-firewall). |------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Related Unit 42 topics | [SilverTerrier](https://unit42.paloaltonetworks.com/tag/silverterrier/), [Cybercrime](https://unit42.paloaltonetworks.com/tag/cyber-crime/), [Business Email Compromise](https://unit42.paloaltonetworks.com/tag/business-email-compromise/) | ## SilverTerrier Actor ![Photo of threat actor from social media. He was arrested as part of Operation Delilah.](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-52.png) Figure 1. Photo of threat actor from social media. **Domains** : We have identified over 240 domains that were registered using this actor's aliases. Of that number, over 50 were used to provide command and control for malware. Most notably, this actor falsely provided a street address in New York city associated with a major financial institution when registering his malicious domains. Examples of domains registered by this actor include: goldmedal-inlt\[.\]com,gulfmedlcal\[.\]com, magen-ecoenregy\[.\]com, nauticelegal\[.\]com, sanof1\[.\]com and scbc-uk\[.\]com. **Malware:** ISRStealer, Pony, LokiBot \*\*Oldest Activity:\*\*2015 **Departing Nigeria:** Upon fleeing Nigeria in June 2021, this actor was observed attempting to sell his Autobiography Special Edition Range Rover for 5.8 million Naira. ![Threat actor arrested as part of Operation Delilah attempting to sell Range Rover on social media.](https://unit42.paloaltonetworks.com/wp-content/uploads/2023/04/Redacted-Range-Rover-image.png) Figure 2. Attempting to sell Range Rover on social media. **Interesting Notes:** This actor shares social media connections with Onuegbu Ifeanyi Ephraim, Darlington Ndukwu, and Onukwubiri Ifeanyi Kingsley, all of whom were arrested in 2021 as part of [Operation Falcon II](https://unit42.paloaltonetworks.com/operation-falcon-ii-silverterrier-nigerian-bec/). He is also considered to be well connected with other known BEC actors. ## Protections and Mitigations The best defense against BEC campaigns is a security posture that favors prevention. Please see our full list of recommendations for a [prevention-focused approach to BEC](https://unit42.paloaltonetworks.com/operation-falcon-ii-silverterrier-nigerian-bec/#protections-and-mitigations). Finally, for Palo Alto Networks customers, our products and services provide several capabilities designed to thwart BEC attempts, including: |------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ![Cortex XDR logo](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-54.png) | [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr) protects endpoints from all malware, exploits and fileless attacks associated with SilverTerrier actors. | | ![WildFire logo](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-55.png) | [WildFire®](https://www.paloaltonetworks.com/products/secure-the-network/wildfire) cloud-based threat analysis service accurately identifies samples associated with information stealers, RATs and document packaging techniques used by these actors. | | ![Threat Prevention logo](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-56.png) | [Threat Prevention](https://www.paloaltonetworks.com/products/secure-the-network/subscriptions/threat-prevention) provides protection against the known client and server-side vulnerability exploits, malware and command and control infrastructure used by these actors. | | ![Advanced URL Filtering logo](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-57.png) | [Advanced URL Filtering](https://www.paloaltonetworks.com/network-security/advanced-url-filtering) identifies all phishing and malware domains associated with these actors and proactively flags new infrastructure associated with these actors before it is weaponized. | | ![AutoFocus logo](https://unit42.paloaltonetworks.com/wp-content/uploads/2022/04/word-image-58.png) | Users of [AutoFocus™](https://www.paloaltonetworks.com/cortex/autofocus) contextual threat intelligence service can view malware associated with these attacks using the[SilverTerrier](https://autofocus.paloaltonetworks.com/#/tag/Unit42.SilverTerrier) tag. | ## Conclusion While BEC schemes remain the most profitable and widespread form of cybercrime on the internet, private/public collaborative efforts continue to make tremendous strides in combating these threats on a global scale. The success of this most recent joint operation highlights the expanding capability of global law enforcement to coordinate and track actors as they travel abroad, ultimately leading to apprehension of BEC actors when they return to their home countries. Palo Alto Networks was the first cybersecurity company to sign a partnership agreement with INTERPOL in 2017. This agreement served as the foundation for our collaborative efforts in combating criminal trends in cyberspace and other cyberthreats globally. Since then the partnership has continued to evolve, and today Palo Alto Networks remains a proud contributing member of INTERPOL's Gateway program. ## Additional Resources 2022 - [Operation Falcon II: Unit 42 Helps INTERPOL Identify Nigerian Business Email Compromise Ring Members](https://unit42.paloaltonetworks.com/operation-falcon-ii-silverterrier-nigerian-bec/) 2021 - [Interpol Operation Falcon II](https://www.interpol.int/News-and-Events/News/2022/Nigerian-cybercrime-fraud-11-suspects-arrested-syndicate-busted) 2021 -- [Credential Harvesting at Scale Without Malware](https://unit42.paloaltonetworks.com/credential-harvesting/) [Mitre: SilverTerrier Group](https://attack.mitre.org/groups/G0083/) 2020 - [Interpol Operation Falcon](https://www.interpol.int/en/News-and-Events/News/2020/Three-arrested-as-INTERPOL-Group-IB-and-the-Nigeria-Police-Force-disrupt-prolific-cybercrime-group) 2020 -- [SilverTerrier: New COVID-19 Themed Business Email Compromise Schemes](https://unit42.paloaltonetworks.com/silverterrier-covid-19-themed-business-email-compromise/) 2019 -- [SilverTerrier: 2019 Nigerian Business Email Compromise Update](https://unit42.paloaltonetworks.com/silverterrier-2019-update/) 2018 -- [SilverTerrier: 2018 Nigerian Business Email Compromise Update](https://unit42.paloaltonetworks.com/silverterrier-2018-nigerian-business-email-compromise/) 2017 -- [SilverTerrier: The Rise of Nigerian Business Email Compromise](https://www.paloaltonetworks.com/resources/whitepapers/unit42-silverterrier-rise-of-nigerian-business-email-compromise.html) 2016 -- [SilverTerrier: The Next Evolution in Nigerian Cybercrime](https://www.paloaltonetworks.com/resources/research/silverterrier-next-evolution-nigerian-cybercrime) 2014 -- [419 Evolution](https://unit42.paloaltonetworks.com/unit-42-new-era-threat-intelligence/) [Unit 42 - Business Email Compromise - Response Services](https://www.paloaltonetworks.com/unit42/incident-response/business-email-compromise) [Unit 42 - Business Email Compromise - Readiness Assessment](https://www.paloaltonetworks.com/bec-readiness-assessment) Back to top ### Tags * [Nigeria](https://unit42.paloaltonetworks.com/tag/nigeria/ "Nigeria") * [SilverTerrier](https://unit42.paloaltonetworks.com/tag/silverterrier/ "SilverTerrier") * [Syndicate Orion](https://unit42.paloaltonetworks.com/tag/syndicate-orion/ "Syndicate Orion") [Threat Research Center](https://unit42.paloaltonetworks.com "Threat Research") [Next: Threat Brief: VMware Vulnerabilities Exploited in the Wild (CVE-2022-22954 and Others)](https://unit42.paloaltonetworks.com/cve-2022-22954-vmware-vulnerabilities/ "Threat Brief: VMware Vulnerabilities Exploited in the Wild (CVE-2022-22954 and Others)") ### Table of Contents * ### Related Articles * [Operation Falcon II: Unit 42 Helps INTERPOL Identify Nigerian Business Email Compromise Ring Members](https://unit42.paloaltonetworks.com/operation-falcon-ii-silverterrier-nigerian-bec/ "article - table of contents") * [SilverTerrier -- Nigerian Business Email Compromise](https://unit42.paloaltonetworks.com/silverterrier-nigerian-business-email-compromise/ "article - table of contents") * [SilverTerrier: New COVID-19 Themed Business Email Compromise Schemes](https://unit42.paloaltonetworks.com/silverterrier-covid-19-themed-business-email-compromise/ "article - table of contents") ## Related Resources ![Pictorial representation of Russian global webmail espionage campaign. 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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. 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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. 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