HiddenFace can upload files from the victim machine to C2 nodes.45
tool
HiddenFace S9023
- Type
- malware
- Platform
- Windows
- Created
- 17 April 2026
- Last modified
- 12 May 2026
HiddenFace is a modular backdoor developed and used exclusively by MirrorFace since at least 2021. HiddenFace can communicate both actively and passively and has been used against political and academic targets.[1][2][3]
25
TechniquesTop 12%
8
TacticsTop 20%
1
Threat groupunranked
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S9023
HiddenFace can use active and passive C2 modes that use different encryption algorithms and backdoor commands.6
HiddenFace can dynamically resolve Windows APIs.78
HiddenFace has encrypted its payload with AES.910
HiddenFace can collect the username associated with the compromised host.11
HiddenFace has used scheduled tasks for execution and persistence.1213
Standing S9023
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.
Tactics8Top 20%
80th percentile · 80% 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.
Campaign185% 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 / technique9medBottom 13%
13th percentile · 87% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique3med
Detection coverage S9023
693 distinct rules cover the 25 techniques recorded for this tool. The 716 technique-to-rule mappings resolve to 693 distinct rules, because one rule can cover several techniques. 447 Sigma · 246 Splunk.
22 covered by at least one rule3 with no coverage693 distinct rules in total
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