Suspicious Hidden Directory configrc for Bandwidth SDK Abuse

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1564.001Hidden Files and Directories
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects references to the hidden .configrc directory used to stage tooling. In the campaign monetizing victim bandwidth via proxyware SDKs the attackers hide stager scripts z593 z401 and z402 inside a .configrc directory. Use of this hidden directory helps conceal the proxyware installation footprint.

Reporting behind it

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Suspicious Hidden Directory configrc for Bandwidth SDK Abuse

Pivot detection · T1564.001 · 9 related

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