MirrorStealer has stored stolen credentials on the local machine in %TEMP%\31558.txt.2
tool
MirrorStealer S9022
- Type
- malware
- Platform
- Windows
- Created
- 17 April 2026
- Last modified
- 24 April 2026
MirrorStealer is a credential stealer that has been used by MirrorFace since at least 2022 to steal credentials from various applications, including browsers and email clients. MirrorStealer has been delivered directly into system memory via commands issued by LODEINFO.[1]
4
TechniquesBottom 17%
2
TacticsBottom 12%
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 S9022
MirrorStealer can target Group Policy Preferences for credentials.3
MirrorStealer has the ability to steal credentials from email clients.45
MirrorStealer can steal credentials stored in browsers.67
Standing S9022
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
Techniques4Bottom 17%
17th percentile · 83% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics2Bottom 12%
12th percentile · 88% of 825 ATT&CK software entries have more tactics spanned.
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 / technique10.5medBottom 16%
16th percentile · 84% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique5.5med
Detection coverage S9022
37 distinct rules cover the 4 techniques recorded for this tool. The 39 technique-to-rule mappings resolve to 37 distinct rules, because one rule can cover several techniques. 25 Sigma · 12 Splunk.
4 covered by at least one rule37 distinct rules in total
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