Concrete signature match: PUAAdvertising for 32-bit Windows platform, family Imali
PUAAdvertising:Win32/Imali is a Potentially Unwanted Application with advanced capabilities that extend beyond typical advertising. It leverages system utilities like mshta, regsvr32, rundll32, PowerShell, and BITS for execution, persistence via scheduled tasks, and communication. The threat exhibits extensive API hooking, remote file operations, data encoding, and network manipulation, indicating a significant potential for system compromise, data exfiltration, or further payload delivery.
Relevant strings associated with this threat: - /?qK9 (SNID) - !#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)
9686658f8a93c5d4aa8f7c7db1b276a1ede4e8462b1ea49bd53ef422e3ca011dImmediately isolate the affected system to prevent further spread. Perform a full system scan with updated antivirus software to remove all detected components. Manually investigate and remove any persistence mechanisms (e.g., scheduled tasks, startup entries, modified services). Given the hooking capabilities suggesting deep system compromise, a system reimage should be strongly considered if full eradication cannot be definitively confirmed.