KeyBoy uses custom SSL libraries to impersonate SSL in C2 traffic.3
tool
KeyBoy S0387
- Type
- malware
- Platform
- Windows
- Created
- 14 June 2019
- Last modified
- 18 April 2024
KeyBoy is malware that has been used in targeted campaigns against members of the Tibetan Parliament in 2016.[1][2]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0387
KeyBoy can determine the public or WAN IP address for the system.4
In one version of KeyBoy, string obfuscation routines were used to hide many of the critical values referenced in the malware.5
KeyBoy installs a keylogger for intercepting credentials and keystrokes.6
KeyBoy uses PowerShell commands to download and execute payloads.7
KeyBoy can launch interactive shells for communicating with the victim machine.89
Standing S0387
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
75th percentile · 75% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
80th percentile · 80% 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
30th percentile · 70% of 825 ATT&CK software entries have more detection rules per technique.
Detection coverage S0387
715 distinct rules cover the 18 techniques recorded for this tool. The 777 technique-to-rule mappings resolve to 715 distinct rules, because one rule can cover several techniques. 530 Sigma · 185 Splunk.
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