tool
Avenger S0473
- Type
- malware
- Platform
- Windows
- Created
- 11 June 2020
- Last modified
- 22 October 2025
Avenger is a downloader that has been used by BRONZE BUTLER since at least 2019.[1]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0473
Avenger can extract backdoor malware from downloaded images.3
Avenger has the ability to XOR encrypt files to be sent to C2.4
Avenger has the ability to inject shellcode into svchost.exe.5
Avenger has the ability to use Tasklist to identify running processes.6
Avenger has the ability to use HTTP in communication with C2.7
Standing S0473
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
54th percentile · 54% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
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
55th percentile · 55% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Detection coverage S0473
391 distinct rules cover the 12 techniques recorded for this tool. The 409 technique-to-rule mappings resolve to 391 distinct rules, because one rule can cover several techniques. 273 Sigma · 118 Splunk.
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