Detectionhightest
Unusual Child Process of dns.exe
Detects an unexpected process spawning from dns.exe which may indicate activity related to remote code execution or other forms of exploitation as seen in CVE-2020-1350 (SigRed)
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Launch
Tim Rauch, Elastic SecurityCreated Tue Sep 27Updated Sun Feb 05a4e3d776-f12e-42c2-8510-9e6ed1f43ec3windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection:
ParentImage|endswith: '\dns.exe'
filter:
Image|endswith: '\conhost.exe'
condition: selection and not filterFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Rule Metadata
Rule ID
a4e3d776-f12e-42c2-8510-9e6ed1f43ec3
Status
test
Level
high
Type
Detection
Created
Tue Sep 27
Modified
Sun Feb 05
Author
Path
rules/windows/process_creation/proc_creation_win_dns_susp_child_process.yml
Raw Tags
attack.persistenceattack.initial-accessattack.t1133