QUADAGENT uses multiple protocols (HTTPS, HTTP, DNS) for its C2 server as fallback channels if communication with one is unsuccessful.2
tool
QUADAGENT S0269
- Type
- malware
- Platform
- Windows
- Created
- 17 October 2018
- Last modified
- 16 April 2025
17
Techniques72nd pct
7
Tactics68th 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 S0269
QUADAGENT checks if a value exists within a Registry key in the HKCU hive whose name is the same as the scheduled task it has created.3
QUADAGENT gathers the current domain the victim system belongs to.4
QUADAGENT stores a session identifier unique to the compromised system as well as a pre-shared key used for encrypting and decrypting C2 communications within a Registry key (such as HKCU\Office365DCOMCheck) in the HKCU hive.7
Standing S0269
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
Techniques1772nd pct
72nd percentile · 72% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics768th pct
68th percentile · 68% of 825 ATT&CK software entries have this many tactics spanned or fewer.
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 / technique30medTop 22%
78th percentile · 78% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique6med
Detection coverage S0269
857 distinct rules cover the 17 techniques recorded for this tool. The 939 technique-to-rule mappings resolve to 857 distinct rules, because one rule can cover several techniques. 586 Sigma · 271 Splunk.
17 covered by at least one rule857 distinct rules in total
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