user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Win64/Havoc!rfn
Backdoor:Win64/Havoc!rfn - Windows Defender threat signature analysis

Backdoor:Win64/Havoc!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Win64/Havoc!rfn
Classification:
Type:Backdoor
Platform:Win64
Family:Havoc
Detection Type:Concrete
Known malware family with identified signatures
Suffix:!rfn
Specific ransomware family name
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for 64-bit Windows platform, family Havoc

Summary:

This threat is a backdoor component of the Havoc command-and-control (C2) framework, designed to give attackers persistent remote access and full control over the compromised system. The malware, identified by its 'demon.x64.dll' payload, uses advanced techniques for execution, persistence, and evasion, such as API hooking and abusing legitimate Windows tools like PowerShell and Scheduled Tasks.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - demon.x64.dll (PEHSTR_EXT)
 - DllMain (PEHSTR_EXT)
 - !#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)
Known malware which is associated with this threat:
Filename: 23510ac78a9f18f81796b5b4e655742d.exe
86d1ba178ae4f79243051c3b4e7a9beea2395e9ef0c8e2af930e32a51ec83b3f
03/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected host from the network to prevent lateral movement and C2 communication. Conduct a full forensic investigation to determine the initial access vector and scope of the breach. Reimage the system from a known-good source and reset all associated user and service account credentials, as the host is considered fully compromised.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 03/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊