tool
Shark S1019
- Type
- malware
- Platform
- Windows
- Created
- 10 June 2022
- Last modified
- 11 April 2024
Shark is a backdoor malware written in C# and .NET that is an updated version of Milan; it has been used by HEXANE since at least July 2021.[1][2]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S1019
Shark can update its configuration to use a different C2 server.5
Shark can query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid to retrieve the machine GUID.6
Shark can use encrypted and encoded files for C2 configuration.78
Shark binaries have been named audioddg.pdb and Winlangdb.pdb in order to appear legitimate.10
Standing S1019
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
72nd percentile · 72% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
53rd percentile · 53% 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
53rd percentile · 53% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Detection coverage S1019
469 distinct rules cover the 17 techniques recorded for this tool. The 489 technique-to-rule mappings resolve to 469 distinct rules, because one rule can cover several techniques. 320 Sigma · 149 Splunk.
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