Concrete signature match: Backdoor - Provides unauthorized remote access for 64-bit Windows platform, family CobaltStrike
This detection indicates a concrete presence of a CobaltStrike backdoor, a sophisticated post-exploitation framework, on a Win64 system. The malware leverages various legitimate Windows utilities and advanced techniques for remote access, code execution, persistence, data encoding, and lateral movement within a network.
Relevant strings associated with this threat: - !#HSTR:StringCodeForMshta.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.C!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.D!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.L!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.O!pli (PEHSTR_EXT) - !#HSTR:StringCodeForRegsvr32.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForRundll32.A!pli (PEHSTR_EXT) - rundll32 (PEHSTR_EXT) - !#HSTR:StringCodeForBITSJobs.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForPowerShell.G!pli (PEHSTR_EXT) - !#HSTR:StringCodeForScheduledTask.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForDataEncoding.D!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.J!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.K!pli (PEHSTR_EXT) - !#HSTR:StringCodeForRemoteFileCopy.B!pli (PEHSTR_EXT) - !#HSTR:ExecutionGuardrails (PEHSTR_EXT) - !#HSTR:StringCodeForFileDeletion.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForHooking.M!pli (PEHSTR_EXT) - !#HSTR:StringCodeForNetshHelperDLL.A!pli (PEHSTR_EXT) - !#HSTR:StringCodeForRemoteServices.A!pli (PEHSTR_EXT)
5917b119c45deae6ebba17f74bdee293079a191cfcffc5be2fb4c856a55e04981744e1ba7387a4506980d9cebf5dc9ad46691ed116cd1c146332e2e43413db2eb8da01345eaa92f4823e5c6097ec592e4e4666380ec4108a350bff0e6cd7d3449e0833cb67e666b9f3ee513c162d99287ea61fda8efb10b35ea659cc58c4998dImmediately isolate the infected host from the network. Conduct a full forensic analysis to identify the initial compromise vector, persistence mechanisms, and any lateral movement. Eradicate the threat by cleaning or re-imaging the affected system, and ensure all network logs are reviewed for indicators of compromise (IOCs) and exfiltration attempts.