Seth-Locker can execute commands via the command line shell.2
tool
Seth-Locker S0639
- Type
- malware
- Platform
- Windows
- Created
- 13 August 2021
- Last modified
- 25 April 2025
Seth-Locker is a ransomware with some remote control capabilities that has been in use since at least 2021. [1]
3
TechniquesBottom 12%
3
TacticsBottom 21%
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 S0639
Seth-Locker has the ability to download and execute files on a compromised host.3
Seth-Locker can encrypt files on a targeted system, appending them with the suffix .seth.4
Standing S0639
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
Techniques3Bottom 12%
12th percentile · 88% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics3Bottom 21%
21st percentile · 79% of 825 ATT&CK software entries have more tactics spanned.
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 / technique61medTop 3%
97th percentile · 97% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique10med
Detection coverage S0639
214 distinct rules cover the 3 techniques recorded for this tool. The 217 technique-to-rule mappings resolve to 214 distinct rules, because one rule can cover several techniques. 147 Sigma · 67 Splunk.
3 covered by at least one rule214 distinct rules in total
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