tool

Clop S0611

Type: malware
Platform: Windows
Created: 10 May 2021
Last modified: 25 April 2025

Clop is a ransomware family that was first observed in February 2019 and has been used against retail, transportation and logistics, education, manufacturing, engineering, automotive, energy, financial, aerospace, telecommunications, professional and legal services, healthcare, and high tech industries. Clop is a variant of the CryptoMix ransomware.[1][2][3]

Techniques72nd pct

Tactics53rd pct

Threat groupunranked

CampaignsNone recorded

Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.

MITRE reference S0611

Software Packing T1027.002↗

Clop has been packed to help avoid detection.4 5

Stealth1 detection rules

Process Discovery T1057↗

Clop can enumerate all processes on the victim's machine.6

Discovery10 detection rules

Windows Command Shell T1059.003↗

Clop can use cmd.exe to help execute commands on the system.7

Execution61 detection rules

File and Directory Discovery T1083↗

Clop has searched folders and subfolders for files to encrypt.8

Discovery29 detection rules

Native API T1106↗

Clop has used built-in API functions such as WNetOpenEnumW(), WNetEnumResourceW(), WNetCloseEnum(), GetProcAddress(), and VirtualAlloc().9 10

Execution14 detection rules

Modify Registry T1112↗

Clop can make modifications to Registry keys.11

Persistence · Defense Impairment175 detection rules

Standing S0611

Reach is how much of ATT&CK this tool touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.

Reach

Techniques1772nd pct

72nd percentile · 72% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.

Tactics653rd pct

53rd percentile · 53% of 825 ATT&CK software entries have this many tactics spanned or fewer.

Threat group161% tie · 22 values

61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.

Campaigns085% tie · 8 values

85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.

Coverage

Rules / technique19med42nd pct

42nd percentile · 58% of 825 ATT&CK software entries have more detection rules per technique.

Tests / technique10med

Detection coverage S0611

728 distinct rules cover the 17 techniques recorded for this tool. The 756 technique-to-rule mappings resolve to 728 distinct rules, because one rule can cover several techniques. 448 Sigma · 280 Splunk.

17 covered by at least one rule728 distinct rules in total

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MITRE reference S0611

Reach

Coverage

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