Detection rules › Sigma
DNS Query Request By QuickAssist.EXE
Detects DNS queries initiated by "QuickAssist.exe" to Microsoft Quick Assist primary endpoint that is used to establish a session.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Lateral Movement | T1210 Exploitation of Remote Services |
| Command & Control | T1071.001 Application Layer Protocol: Web Protocols |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 22 | DNSEvent (DNS query) |
Stages and Predicates
Stage 1: selection
Image|endswith: '\QuickAssist.exe'
QueryName|endswith: 'remoteassistance.support.services.microsoft.com'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | ends_with |
|
QueryName | ends_with |
|