Egregor's payloads are custom-packed, archived and encrypted to prevent analysis.45
tool
Egregor S0554
- Type
- malware
- Platform
- Windows
- Created
- 29 December 2020
- Last modified
- 25 April 2025
Egregor is a Ransomware-as-a-Service (RaaS) tool that was first observed in September 2020. Researchers have noted code similarities between Egregor and Sekhmet ransomware, as well as Maze ransomware.[1][2][3]
25
TechniquesTop 12%
9
TacticsTop 11%
0
Threat groupsNone recorded
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0554
Standing S0554
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
Techniques25Top 12%
88th percentile · 88% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics9Top 11%
89th percentile · 89% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat groups061% 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 / technique26med64th pct
64th percentile · 64% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique7med
Detection coverage S0554
1287 distinct rules cover the 25 techniques recorded for this tool. The 1395 technique-to-rule mappings resolve to 1287 distinct rules, because one rule can cover several techniques. 862 Sigma · 425 Splunk.
25 covered by at least one rule1287 distinct rules in total
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