QuasarRAT can retrieve files from compromised client machines.3
tool
QuasarRAT S0262
- Type
- tool
- Platform
- Windows
- Created
- 17 October 2018
- Last modified
- 12 May 2026
QuasarRAT is an open-source, remote access tool that has been publicly available on GitHub since at least 2014. QuasarRAT is developed in the C# language.[1][2]
25
TechniquesTop 12%
10
TacticsTop 6%
7
Threat groupsunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0262
APT-C-36 used a customized version of QuasarRAT to monitor browser windows for strings relating to specific Colombian financial institutions.4
QuasarRAT has the ability to enumerate the Wide Area Network (WAN) IP through requests to ip-api[.]com, freegeoip[.]net, or api[.]ipify[.]org observed with user-agent string Mozilla/5.0 (Windows NT 6.3; rv:48.0) Gecko/20100101 Firefox/48.0.5
QuasarRAT has a module for performing remote desktop access.67
QuasarRAT contains a .NET wrapper DLL for creating and managing scheduled tasks for maintaining persistence upon reboot.910
Standing S0262
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
Techniques25Top 12%
88th percentile · 88% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics10Top 6%
94th percentile · 94% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat groups761% 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 / technique22med53rd pct
53rd percentile · 53% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique7med
Detection coverage S0262
830 distinct rules cover the 25 techniques recorded for this tool. The 879 technique-to-rule mappings resolve to 830 distinct rules, because one rule can cover several techniques. 551 Sigma · 279 Splunk.
23 covered by at least one rule2 with no coverage830 distinct rules in total
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