tool
KOPILUWAK S1075
- Type
- malware
- Platform
- Windows
- Created
- 17 May 2023
- Last modified
- 16 April 2025
KOPILUWAK is a JavaScript-based reconnaissance tool that has been used for victim profiling and C2 since at least 2017.[1]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S1075
KOPILUWAK can use Arp to discover a target's network configuration setttings.3
KOPILUWAK can conduct basic network reconnaissance on the victim machine with whoami, to get user details.4
KOPILUWAK has exfiltrated collected data to its C2 via POST requests.5
KOPILUWAK can use netstat, Arp, and Net to discover current TCP connections.6
KOPILUWAK can enumerate current running processes on the targeted machine.7
Standing S1075
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
57th percentile · 57% 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 S1075
339 distinct rules cover the 13 techniques recorded for this tool. The 371 technique-to-rule mappings resolve to 339 distinct rules, because one rule can cover several techniques. 206 Sigma · 133 Splunk.
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