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

VirTool:MSIL/Aikaantivm.GG!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: VirTool:MSIL/Aikaantivm.GG!MTB
Classification:
Type:VirTool
Platform:MSIL
Family:Aikaantivm
Detection Type:Concrete
Known malware family with identified signatures
Variant:GG
Specific signature variant within the malware family
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
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:

This threat is a .NET-based malware tool designed to evade analysis by detecting virtual machines, sandboxes, and debuggers. It establishes persistence via registry Run keys and contains functionality for process injection and executing secondary payloads using built-in Windows utilities like PowerShell and rundll32.

Severity:
Medium
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)
 - IsDebuggerPresent (PEHSTR_EXT)
 - CheckRemoteDebuggerPresent (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)
YARA Rule:
rule VirTool_MSIL_Aikaantivm_GG_2147769553_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "VirTool:MSIL/Aikaantivm.GG!MTB"
        threat_id = "2147769553"
        type = "VirTool"
        platform = "MSIL: .NET intermediate language scripts"
        family = "Aikaantivm"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "73"
        strings_accuracy = "High"
    strings:
        $x_10_1 = "Software\\Microsoft\\Windows\\CurrentVersion\\Run" ascii //weight: 10
        $x_10_2 = "Select * from Win32_ComputerSystem" ascii //weight: 10
        $x_10_3 = "microsoft corporation" ascii //weight: 10
        $x_10_4 = "VIRTUAL" ascii //weight: 10
        $x_10_5 = "vmware" ascii //weight: 10
        $x_10_6 = "VirtualBox" ascii //weight: 10
        $x_10_7 = "SbieDll.dll" ascii //weight: 10
        $x_1_8 = "cmdvrt32.dll" ascii //weight: 1
        $x_1_9 = "SxIn.dll" ascii //weight: 1
        $x_1_10 = "WriteProcessMemory" ascii //weight: 1
        $x_1_11 = "NtUnmapViewOfSection" ascii //weight: 1
        $x_1_12 = "VirtualAllocEx" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (
            ((7 of ($x_10_*) and 3 of ($x_1_*))) or
            (all of ($x*))
        )
}
Known malware which is associated with this threat:
Filename: Loader.exe
c19b9a5c933f2a33d44e1fa3d491832a2f541d1fb7da2b22c6cdb69e919cace3
06/12/2025
→VirusTotal↓Download Sample
Filename: Client.exe
f7123e6aa1c5cf243a49b5f074142144a2e06e498458f9a2c7e6e1ad04164e74
23/11/2025
→VirusTotal↓Download Sample
Filename: Client.exe
f9952abc64553d33f93feaaea3ae9e705a890f0d48b2bd1af77bd7e7b17034bb
23/11/2025
→VirusTotal↓Download Sample
Filename: Client.exe
f9baba9f206287f1044d12fd6a6a583c02a1fca9edec41783ad096f202776226
23/11/2025
→VirusTotal↓Download Sample
Filename: Client.exe
ee4552132293dd151868a5cfb0e3e3fd2816956ab3cd30af8fa37e3802014f0d
23/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Use antivirus software to quarantine the detected file. Run a full system scan to find any related malicious components. Check for and remove persistence mechanisms such as suspicious registry Run keys and Scheduled Tasks. Analyze network logs for unusual outbound connections.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 23/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊