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Threat Actor

ALPHV / BlackCat

alphv_blackcat · russia_speaking_cybercrime · active since 2021

ALPHV / BlackCat (Noberus / DarkSide-successor / BlackMatter- successor / DEV-0237 / Storm-0875 / G1068) is a financially- motivated organized cyber-criminal cluster operating from Russia and adjacent post-Soviet states that operated the first major Rust-language ransomware-as-a-service operation in the publicly-tracked record, emerging in November 2021 as the third major brand in a sustained DarkSide (August 2020 - May 2021, including Colonial Pipeline May 2021) - BlackMatter (July - November 2021) - ALPHV / BlackCat (November 2021 - March 2024) operational lineage representing one of the clearest documented examples of ransomware-operator rebranding-and-continuation under sustained law-enforcement pressure, with twenty-eight months of operations characterized by sustained technical sophistication (the Rust-language programming choice complicating detection and analysis at time of emergence, plus first major triple-extortion ransomware-as-a-service including encryption + data-theft-and-publication + distributed-denial-of-service threat)

most operationally consequential operations include the February-March 2024 Change Healthcare attack disrupting US healthcare payment processing for weeks across thousands of US healthcare providers (~$22M USD Bitcoin ransom payment confirmed by UnitedHealth Group, substantial US healthcare-sector and national-security policy attention), and the September 2023 MGM Resorts + Caesars Entertainment attacks via Scattered Spider affiliate (~$100M USD operational impact MGM, ~$15M USD ransom Caesars per SEC filings)

cluster operated through two major law-enforcement disruption events, FBI Operation Cookie Monster (December 19, 2023, ~700 decryption keys recovered, ALPHV operators stood up new infrastructure within ~5 days) and the March 5, 2024 operator exit-scam in which administrators announced shutdown without paying the affiliate cut from the Change Healthcare $22M ransom, effectively stealing ~$20+ million from their own Scattered-Spider-affiliated operator and permanently damaging ALPHV's affiliate-recruitment reputation; no formal individual-operator attribution at the named-Russian- national level has been issued despite substantial law- enforcement action (Khoroshev-style indictment from LockBit has not been replicated for ALPHV).

russia_speaking_cybercrime confidence: high 27 aliases MITRE ATT&CK G0102 ↗

Profile

ALPHV / BlackCat (also tracked as Noberus, DEV-0237, Storm-0875, and MITRE ATT&CK G1068) is a financially-motivated organized cyber-criminal cluster operating from Russia and adjacent post- Soviet states that operated the first major Rust-language ransomware-as-a-service operation in the publicly-tracked record.

The cluster emerged in November 2021 as the third major brand in a sustained operational lineage: DarkSide (August 2020
  • May 2021, including the operationally-consequential Colonial Pipeline attack May 7, 2021)
  • BlackMatter (July.
  • November 2021)
  • ALPHV / BlackCat (November 2021.
  • March 2024). The DarkSide.
  • BlackMatter.
  • ALPHV operational lineage represents one of the clearest documented examples of ransomware-operator rebranding- and-continuation under sustained law-enforcement pressure, operations continued under new brand identities while maintaining substantial personnel and tooling overlap. The cluster's twenty-eight-month operational lifespan (November 2021.
  • March 2024) was characterized by sustained operational scale and technical sophistication. The Rust-language programming choice was operationally significant, earlier mainstream ransomware was C/C++ or Go-language; the Rust pivot complicated detection and analysis (Rust binaries have different static- analysis signatures than C/C++ binaries, and fewer mainstream defender tools had mature Rust-binary analysis capabilities at time of emergence) and represented technical sophistication. The cluster also established the first major triple-extortion ransomware-as-a-service operation including encryption, data- theft-and-publication threat, and distributed-denial-of-service threat as additional pressure component. The cluster operated through two major law-enforcement disruption events: First, FBI Operation Cookie Monster (December 19, 2023) seized ALPHV / BlackCat leak site infrastructure and disrupted cluster operations. The FBI obtained approximately seven hundred decryption keys which were offered to past victims via no-cost decryption. ALPHV operators stood up new leak-site infrastructure within approximately five days of the seizure, demonstrating operational resilience but also operational vulnerability to coordinated international action. Second, the March 5, 2024 ALPHV / BlackCat exit-scam, the most operationally significant cluster termination event in the publicly-tracked record. Following the February 2024 Change Healthcare attack (executed by a Scattered Spider-affiliated operator) and UnitedHealth Group's subsequent confirmed approximately $22 million US dollar Bitcoin ransom payment to ALPHV, ALPHV administrators announced cluster shutdown without paying the affiliate cut to the operator who had executed the Change Healthcare operation. The administrators effectively stole approximately $20+ million from their own affiliate. The exit-scam was operationally consequential beyond the specific financial loss because it permanently damaged ALPHV's affiliate- recruitment reputation and effectively ended the cluster's operational viability. The exit-scam pattern is relatively unusual in the ransomware-as-a-service ecosystem (most operations wind down via gradual operational retirement rather than affiliate-cut theft) and represents a meaningful operational- doctrine data point. The cluster's most operationally consequential single operation was the Change Healthcare attack (February-March 2024). Change Healthcare, a UnitedHealth Group subsidiary processing approximately 50% of US healthcare claims, disruption affected US healthcare payment processing for weeks across thousands of US healthcare providers, pharmacies, and hospitals, with substantial cascading impact on US healthcare operations and patient prescription fulfillment. The attack was operationally consequential not only for the affected company but for broader US healthcare-sector and national-security understanding of cyber-criminal-cluster operational impact on critical infrastructure. US Department of Health and Human Services, US Congress, and substantial international policy attention followed. The cluster's operations against MGM Resorts International and Caesars Entertainment in September 2023 (executed via the Scattered Spider affiliate, already covered as scattered_spider.yaml) were also operationally consequential, MGM disclosed approximately $100M USD operational impact across a ten-day disruption; Caesars reportedly paid approximately $15M USD ransom per SEC filings. The Scattered Spider affiliation demonstrated the cluster's ability to operate at the highest tier of corporate-victim impact via affiliate operations. Operationally the cluster operated a sophisticated ransomware-as- a-service affiliate program with technical support for affiliates, financial-management infrastructure for ransom collection and affiliate-cut distribution (until the exit-scam), Rust-language ransomware variant evolution, and Linux / VMware ESXi / macOS cross-platform capability. The Munchkin loader and Exmatter data-exfiltration tool represented signature cluster tooling alongside the core ALPHV / BlackCat ransomware. A handful of operational notes: First, the cluster represents one of the most consequential ransomware operations in the publicly-tracked record despite its comparatively short twenty-eight-month operational lifespan. The Change Healthcare attack alone represents one of the most operationally consequential cyber-criminal operations against US critical infrastructure in the publicly-tracked era. The MGM / Caesars September 2023 operations represented industry- leading corporate-victim impact. The DarkSide.
  • BlackMatter.
  • ALPHV operational lineage demonstrated sustained capability and operational resilience across multiple brand identities. Second, the absence of individual-operator attribution at the named-Russian-national level (the Khoroshev pattern from LockBit) represents an analytical gap. Despite substantial law- enforcement action against ALPHV / BlackCat (Operation Cookie Monster, multiple CISA advisories, sustained FBI tracking), no formal indictment of specific ALPHV administrators has been publicly issued. The gap may reflect operational considerations in ongoing investigation, may reflect difficulty in attributing specific Russia-based operators despite available evidence, or may reflect strategic choices in law-enforcement disclosure timing. The Khoroshev indictment + sanctions + reward template established for LockBit has not been replicated for ALPHV / BlackCat. Third, the cluster's analytical profile differs from peer financially-motivated organized cyber-criminal clusters covered in this corpus in several ways: technical sophistication (first-major-Rust-language ransomware vs C/C++/Go competitors), operational lineage (clear DarkSide.
  • BlackMatter.
  • ALPHV rebranding pattern vs LockBit's single-brand sustained operations vs Wizard Spider's multi-era TrickBot-then-Conti operations), and termination mode (operator exit-scam vs LockBit's law- enforcement-disruption-and-attempted-revival vs Wizard Spider / Conti's ContiLeaks-exposure-and-successor-diaspora). The cluster is the central reference for understanding ransomware-operator- rebranding patterns and exit-scam operational doctrine. Fourth, post-exit-scam operational personnel are widely assessed to have subsequently surfaced under new brand identities, continuing the DarkSide.
  • BlackMatter.
  • ALPHV.
  • next-successor- brand pattern. Specific successor-brand attribution has been analytically open across vendor reporting. Defender threat- modeling should treat the ALPHV / BlackCat successor-personnel as continuing operational threat rather than as historically- retired threat.

Aliases

27
alphvalphv blackcatalphv_blackcatalphvblackcatblackcatblack catblack_catblackcat ransomwareblackcat_ransomwarenoberusalphv ransomwarealphv_ransomwaredarkside successordarkside_successorblackmatter successorblackmatter_successorblackmatter rebrandblackmatter_rebranddev-0237dev_0237dev0237storm-0875storm 0875storm_0875g1068atk 235atk235

MITRE ATT&CK aliases

10
Additional names MITRE lists for G0102.
Wizard SpiderUNC1878TEMP.MixMasterGrim SpiderFIN12GOLD BLACKBURNITG23Periwinkle TempestDEV-0193Pistachio Tempest

Notable Campaigns

9
2024Change Healthcare Attack (February-March 2024)
2024ALPHV / BlackCat Exit Scam (March 5, 2024)
2024Residual Post-Exit-Scam Activity (March 2024 onward)
2023MGM Resorts + Caesars Entertainment Attacks via Scattered Spider Affiliate (September 2023)
2023FBI Operation Cookie Monster, ALPHV Leak Site Seizure (December 19, 2023)
2022CISA + FBI AA22-109A BlackCat Cybersecurity Advisory (April 19, 2022)
2021BlackMatter Predecessor Operations (July - November 2021)
2021ALPHV / BlackCat Emergence (November 2021)
2020-2021DarkSide Predecessor Operations (August 2020 - May 2021)

Attribution & Reporting

Attributed by
FBI Cyber DivisionCISA (US Cybersecurity and Infrastructure Security Agency)US Department of JusticeUS Department of Health and Human ServicesHHS Health Sector Cybersecurity Coordination Center (HC3)Mandiant / Google Cloud Threat IntelligenceMicrosoft Threat Intelligence CenterCrowdStrikeRecorded Future Insikt GroupSentinelOneSophosTrend MicroKaspersky GReATGroup-IBPRODAFTCovewareHalcyonTrustwave SpiderLabsTrellixCybereasonDFIR ReportIBM X-ForcePalo Alto Networks Unit 42
Key reporting
reportCISA + FBI: AA22-109A BlackCat Cybersecurity Advisory (April 19, 2022)
reportCISA + FBI + HHS: AA23-353A ALPHV BlackCat Updated Cybersecurity Advisory (December 19, 2023)
reportUS DOJ: Justice Department Disrupts Prolific ALPHV/BlackCat Ransomware Variant (December 19, 2023), Operation Cookie Monster announcement
reportFBI: FBI Statement on Disruption of ALPHV BlackCat Ransomware Group (December 19, 2023)
reportUS HHS: HHS Statement Regarding Cyberattack on Change Healthcare (March 5, 2024)
reportMicrosoft Threat Intelligence: The Many Lives of BlackCat Ransomware (June 2022)
reportMandiant: BlackCat Rust-Language Ransomware (multiple analyses 2022-2024)
reportCrowdStrike: ALPHV / BlackCat Continued Tracking
reportPalo Alto Networks Unit 42: BlackCat Ransomware Detailed Analysis
reportTrend Micro: Ransomware Spotlight BlackCat (August 2022)
reportCisco Talos: BlackCat Ransomware Deep Dive
reportRecorded Future Insikt Group: BlackCat ALPHV Ransomware Evolution Tracking
reportSophos: ALPHV BlackCat Operational Tracking
reportCoveware: ALPHV BlackCat Ransomware Affiliate Tracking
reportHalcyon: BlackCat Operational Profile
reportPRODAFT: BlackCat Detailed Operational Analysis
reportGroup-IB: ALPHV BlackCat Continued Tracking
reportTrustwave SpiderLabs: BlackCat Ransomware Tracking
reportDFIR Report: BlackCat Operational Analysis
reportMalpedia Actor Profile: ALPHV
reportMITRE ATT&CK Group G1068, ALPHV / BlackCat

Operational

State sponsor

ALPHV / BlackCat is a financially-motivated organized cyber- criminal cluster, not a state-aligned cluster, operating predominantly from Russia and adjacent post-Soviet states. The cluster emerged in approximately November 2021 as a rebranding / successor operation following the operational retirement of DarkSide (after DarkSide's May 2021 Colonial Pipeline ransomware attack that triggered substantial US federal-government and international policy attention, prompting DarkSide's operators to publicly retire) and BlackMatter (DarkSide's first rebrand, operational July-November 2021, which itself wound down operations following continued law-enforcement attention). The cluster represents one of the clearest documented examples of ransomware-operator rebranding-and-continuation under sustained law-enforcement pressure, operations continued under new brand identities while maintaining substantial personnel and tooling overlap.

The cluster operated the first major Rust-language ransomware-as-a-service operation (the previous DarkSide / BlackMatter ransomware was Go-language and earlier mainstream ransomware was C/C++), a programming-language pivot that represented technical sophistication and complicated detection and analysis. The cluster's operational lifespan spanned approximately November 2021 through March 2024 (the operator "exit scam" following the Change Healthcare $22 million US dollar ransom payment), approximately twenty-eight months of sustained operations. The cluster operated through two major law-enforcement disruption events: December 19, 2023 FBI Operation Cookie Monster seizure of the ALPHV leak site followed by ALPHV operators standing up new infrastructure within days, and the March 5, 2024 ALPHV operator exit-scam in which administrators announced shutdown without paying the affiliate cut from the Change Healthcare $22M ransom they had collected, effectively stealing approximately $20+ million from their own affiliate (the Scattered Spider affiliate who had executed the Change Healthcare operation).

No formal individual-operator attribution at the named-Russian-national level has been issued for ALPHV / BlackCat administrators despite the substantial law- enforcement action, Khoroshev-style indictment has not been replicated for this cluster.

Motivations
financial_gain, financially_motivated, cybercrime, ransomware_deployment, extortion, double_extortion, triple_extortion, ransomware_as_a_service_operations, affiliate_program_operations, exit_scam_monetization
Sectors
Regions

Detection Blind Spots

60 techniques
Across this actor’s 60 mapped techniques, the share covered by each detection layer. Low bars are where you’d be blind if this actor targeted you.
Behavioral / log (Sigma)56/60 · 93%
Analytics (MITRE CAR)29/60 · 48%
Runtime / container (Falco)7/60 · 11%
File / malware (YARA)0/60 · 0%
Network (Suricata/Snort)15/60 · 25%
Vuln scan (Nuclei)0/60 · 0%

Atomic Test Plan

30 techniques
Runnable Atomic Red Team tests covering this actor’s mapped techniques - validate your detections against this specific adversary. Cross-reference the blind spots above. For authorized lab / purple-team use. Open the full builder

Tools Used

2 mapped
Other tooling / TTPs (curation, not ATT&CK-mapped):
MEGA NZMETERPRETERMSHTAMUNCHKIN LOADERSCREENCONNECT ABUSESCREEN CONNECT ABUSESHARPHOUNDSPLASHTOP ABUSE
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
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