user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat VirTool:MSIL/Aikaantivm!rfn
VirTool:MSIL/Aikaantivm!rfn - Windows Defender threat signature analysis

VirTool:MSIL/Aikaantivm!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: VirTool:MSIL/Aikaantivm!rfn
Classification:
Type:VirTool
Platform:MSIL
Family:Aikaantivm
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: Virus Tool - Tool used to create or modify malware for .NET (Microsoft Intermediate Language) platform, family Aikaantivm

Summary:

VirTool:MSIL/Aikaantivm!rfn is a sophisticated tool, likely written in MSIL, designed for evasion, persistence, and complex execution on Windows systems. It utilizes multiple techniques including modifying autorun keys, creating scheduled tasks and BITS jobs, executing code via MSHTA, Regsvr32, Rundll32, and PowerShell, and employs API hooking for further stealth and control. The threat also shows capabilities for system information gathering, data encoding, and remote file operations, indicating a significant risk for system compromise.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - Software\Microsoft\Windows\CurrentVersion\Run (PEHSTR_EXT)
 - Select * from Win32_ComputerSystem (PEHSTR_EXT)
 - SbieDll.dll (PEHSTR_EXT)
 - cmdvrt32.dll (PEHSTR_EXT)
 - SxIn.dll (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)
Remediation Steps:
Immediately isolate the affected system from the network. Perform a full, deep scan using updated antivirus/antimalware software. Investigate and remove all identified persistence mechanisms (Run keys, Scheduled Tasks, BITS jobs). Review system logs for unusual process executions (mshta, powershell, rundll32, regsvr32) and network connections. Apply all pending security updates and patches to the operating system and applications.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 26/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊