Suspicious DGA Subdomain Resolution of systemupdate.info by BellaCPP

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects DNS queries for subdomains under the systemupdate.info domain used as command-and-control by the BellaCPP backdoor. The malware builds DGA-style hostnames of a short letter string plus an identifier and country code under this parent domain. Resolution of this C2 domain indicates active BellaCPP beaconing.

Reporting behind it

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Suspicious DGA Subdomain Resolution of systemupdate.info by BellaCPP

Pivot detection · T1071.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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