WindTail can be delivered as a compressed, encrypted, and encoded payload.4
tool
WindTail S0466
- Type
- malware
- Platform
- macOS
- Created
- 4 June 2020
- Last modified
- 17 November 2024
WindTail is a macOS surveillance implant used by Windshift. WindTail shares code similarities with Hack Back aka KitM OSX.[1][2][3]
15
Techniques66th pct
6
Tactics53rd pct
1
Threat groupunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0466
WindTail can be delivered as a compressed, encrypted, and encoded payload.5
WindTail has used icons mimicking MS Office files to mask payloads.6
WindTail has been incompletely signed with revoked certificates.7
WindTail has the ability to automatically exfiltrate files using the macOS built-in utility /usr/bin/curl.8
WindTail can use the open command to execute an application.9
Standing S0466
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
Techniques1566th pct
66th percentile · 66% 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 / technique20med48th pct
48th percentile · 52% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique5med
Detection coverage S0466
307 distinct rules cover the 15 techniques recorded for this tool. The 310 technique-to-rule mappings resolve to 307 distinct rules, because one rule can cover several techniques. 221 Sigma · 86 Splunk.
13 covered by at least one rule2 with no coverage307 distinct rules in total
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