When a document is found matching one of the extensions in the configuration, TINYTYPHON uploads it to the C2 server.2
tool
TINYTYPHON S0131
- Type
- malware
- Created
- 31 May 2017
- Last modified
- 10 April 2024
TINYTYPHON is a backdoor that has been used by the actors responsible for the MONSOON campaign. The majority of its code was reportedly taken from the MyDoom worm. [1]
4
TechniquesBottom 17%
5
Tactics41st 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 S0131
TINYTYPHON has used XOR with 0x90 to obfuscate its configuration file.3
TINYTYPHON searches through the drive containing the OS, then all drive letters C through to Z, for documents matching certain extensions.4
TINYTYPHON installs itself under Registry Run key to establish persistence.5
Standing S0131
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.
Tactics541st pct
41st percentile · 59% 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 / technique21.5med50th pct
50th percentile · 50% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique6med
Detection coverage S0131
90 distinct rules cover the 4 techniques recorded for this tool. 76 Sigma · 14 Splunk.
4 covered by at least one rule90 distinct rules in total
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