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Operator dossier

Prolock is a ransomware operator no longer publishing new disclosures. Darkfield has indexed 2 public victims claimed by this operator between February 23, 2020 and April 25, 2020. Prolock is a ransomware group that emerged in February 2020, operating with primarily financial motivations through targeted attacks against organizations in the United States. The group's origin and potential affiliations remain largely undocumented in public threat intelligence reporting, with limited information available about whether they operate as an independent entity or utilize a ransomware-as-a-service model. Based on available data, Prolock has demonstrated a targeting preference for financial institutions and government facilities, though detailed information about their specific attack methodologies, initial access vectors, and encryption techniques has not been extensively documented by major security research organizations. The group has maintained a relatively low profile compared to other ransomware operations, with only two publicly documented victims, suggesting either limited operational scope or successful operational security that has kept many of their activities from public disclosure. Current intelligence indicates that Prolock's operational status remains unclear, with insufficient public documentation from major threat intelligence sources to definitively assess whether the group remains active, has ceased operations, or potentially rebranded under a different identity.

Most-targeted sectors

Most-affected countries

How we know this. Operator profiles on Darkfield are built from continuous monitoring of every leak site the group is known to operate, cross-correlated with community-curated feeds (RansomLook, ransomware.live, RansomWatch, MISP-galaxy). Status flips from active to inactive when no new disclosure appears for 60 days. MITRE ATT&CK mappings shown in the interactive section below are sourced from CISA, vendor analysis, and the MITRE community catalog — we attribute each technique back to its source. Aliases reflect operator re-brands and affiliate splits.

Inactive ransomware operator

All groups

Prolock

2 victims indexed · first seen 6 years ago · last activity 6 years ago

2
Victims indexed
#300 of 364 tracked operators
2m
Active period
Feb 2020 → Apr 2020
1
Countries hit
top United States · 2

At a glance

Status
inactive
First seen
6 years ago
Last activity
6 years ago
Onion sites
1 known endpoint
Primary sector
Financial · 1 hits

About

Prolock is a ransomware group that emerged in February 2020, operating with primarily financial motivations through targeted attacks against organizations in the United States. The group's origin and potential affiliations remain largely undocumented in public threat intelligence reporting, with limited information available about whether they operate as an independent entity or utilize a ransomware-as-a-service model. Based on available data, Prolock has demonstrated a targeting preference for financial institutions and government facilities, though detailed information about their specific attack methodologies, initial access vectors, and encryption techniques has not been extensively documented by major security research organizations. The group has maintained a relatively low profile compared to other ransomware operations, with only two publicly documented victims, suggesting either limited operational scope or successful operational security that has kept many of their activities from public disclosure. Current intelligence indicates that Prolock's operational status remains unclear, with insufficient public documentation from major threat intelligence sources to definitively assess whether the group remains active, has ceased operations, or potentially rebranded under a different identity.

References

27 links

External sources curated by the MISP threat-intel community.

Timeline

2 months
2020-02-01T00:00:00+00:00 · 12020-04-01T00:00:00+00:00 · 1
2020-02-01T00:00:00+00:002020-04-01T00:00:00+00:00

Top countries

🇺🇸 United States
2

Top sectors

Financial
1
Government Facilities
1

MITRE ATT&CK

3 techniques · 3 tactics

Tactics

Initial AccessExecutionImpact

Techniques

  • T1566Phishing
  • T1059Command and Scripting Interpreter
  • T1486Data Encrypted for Impact

Recent victims

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Onion infrastructure

1 known
  • http://msaoyrayohnp32tcgwcanhjouetb5k54aekgnwg7dcvtgtecpumrxpqd.onion

Source

Updated 6 years ago

Data on this page is sourced from the group's own leak posts, cross-checked with public ransomware trackers (RansomLook, ransomware.live, RansomWatch), MITRE ATT&CK, and our own Tor and Telegram crawlers. This is a public observatory page — share freely.

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