tool
Pysa S0583
- Type
- malware
- Platform
- Windows
- Created
- 1 March 2021
- Last modified
- 25 April 2025
Pysa is a ransomware that was first used in October 2018 and has been seen to target particularly high-value finance, government and healthcare organizations.[1]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0583
Standing S0583
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
70th percentile · 70% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
80th percentile · 80% of 825 ATT&CK software entries have this many tactics spanned or fewer.
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
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
82nd percentile · 82% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Detection coverage S0583
1216 distinct rules cover the 16 techniques recorded for this tool. The 1258 technique-to-rule mappings resolve to 1216 distinct rules, because one rule can cover several techniques. 804 Sigma · 412 Splunk.
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