Emerging Threatcriticalstable
Ursnif Malware C2 URL Pattern
Detects Ursnif C2 traffic.
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Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
Proxy Log
CategoryProxy Log← raw: proxy
Detection Logic
Detection Logic2 selectors
detection:
b64encoding:
c-uri|contains:
- '_2f'
- '_2b'
urlpatterns:
c-uri|contains|all:
- '.avi'
- '/images/'
condition: b64encoding and urlpatternsFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Sub-techniques
Other
detection.emerging-threats
Rule Metadata
Rule ID
932ac737-33ca-4afd-9869-0d48b391fcc9
Status
stable
Level
critical
Type
Emerging Threat
Created
Thu Dec 19
Modified
Mon Aug 09
Author
Path
rules-emerging-threats/2019/Malware/Ursnif/proxy_malware_ursnif_c2_url.yml
Raw Tags
attack.initial-accessattack.t1566.001attack.executionattack.t1204.002attack.command-and-controlattack.t1071.001detection.emerging-threats