user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:MSIL/AsyncRat!atmn
Backdoor:MSIL/AsyncRat!atmn - Windows Defender threat signature analysis

Backdoor:MSIL/AsyncRat!atmn - Windows Defender Threat Analysis

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

Concrete signature match: Backdoor - Provides unauthorized remote access for .NET (Microsoft Intermediate Language) platform, family AsyncRat

Summary:

This is a concrete detection of AsyncRAT, a known Remote Access Trojan that establishes persistence via registry Run keys, executes commands through MSBuild.exe, and communicates with remote C2 servers for unauthorized access.

Severity:
High
VDM Static Detection:
Relevant strings associated with this threat:
 - Set ZpXcmsCQ = CreateObject("Wscript.Shell") (MACROHSTR_EXT)
 - ZpXcmsCQ.Run rdeAjnshv + lqfadUMW + AKrDsxioC, RValue (MACROHSTR_EXT)
 - Set fso = CreateObject("Scripting.FileSystemObject") (PEHSTR_EXT)
 -  & "\ (PEHSTR_EXT)
 - .xml" (PEHSTR_EXT)
 - Set object_Shell = CreateObject("Shell.Application") (PEHSTR_EXT)
 - object_Shell.ShellExecute "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe",  (PEHSTR_EXT)
 - COM Surrogate (PEHSTR_EXT)
 - trevnoC.metsyS (PEHSTR_EXT)
 - CompressionMode (PEHSTR_EXT)
 - TripleDESCryptoServiceProvider (PEHSTR_EXT)
 - https://ufile.io/rftaeqtc (PEHSTR_EXT)
 - Software\Microsoft\Windows\CurrentVersion\Run (PEHSTR_EXT)
 - http://serverupdates48.ga/test (PEHSTR_EXT)
 - HttpWebRequest (PEHSTR_EXT)
 - CarRentalSystem\obj\Debug\Dash.pdb (PEHSTR_EXT)
 - crypted.exe (PEHSTR_EXT)
 - sqkpikos.pdb (PEHSTR_EXT)
 - HCS Computers & Laptops (PEHSTR_EXT)
 - Client.Install (PEHSTR_EXT)
 - GetExecutingAssembly (PEHSTR_EXT)
 - System.Windows.Forms (PEHSTR_EXT)
 - System.Reflection (PEHSTR_EXT)
 - B.text (PEHSTR_EXT)
 - setUTCMinutesTU Jurassic.Library.JSFunctionFlags (PEHSTR_EXT)
 - calc_pro.Form1.resources (PEHSTR_EXT)
 - payload.exe (PEHSTR_EXT)
 - get_Computer (PEHSTR_EXT)
 - Dotfuscated\windwos.pdb (PEHSTR_EXT)
 - windwos.My (PEHSTR_EXT)
 - 134.122.133.49 (PEHSTR_EXT)
 - Client.bin (PEHSTR_EXT)
 - Select * From Win32_ComputerSystem (PEHSTR_EXT)
 - Dotfuscated\CryptoObfuscator_Output\v4.pdb (PEHSTR_EXT)
 - v4.Resources.resources (PEHSTR_EXT)
 - windwos.pdb (PEHSTR_EXT)
 - petrolmanagementsystem.Supplier_withdraw_pump_bank_detail.resources (PEHSTR_EXT)
 - \x64\Release\WechatAnd.pdb (PEHSTR_EXT)
 - windwos\bin\Debug\Dotfuscated\windwos.pdb (PEHSTR_EXT)
 - 9ubmFjIG1hcmdvcnAgc2loVCHNTAG4Ic (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:StringCodeForFileDeletion.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.M!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForNetshHelperDLL.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteServices.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForSoftwarePacking.C!pli (PEHSTR_EXT)
Known malware which is associated with this threat:
81e7fa249c5a779dfb397d80ed5d85b4718e6b94bb2cec78adfedb3b7732cce8
25/06/2026
→VirusTotal↓Download Sample
643a8d498034a4c14b984a251780379cd9a11c0fc1403c1263663669614a61c9
25/06/2026
→VirusTotal↓Download Sample
cb2830ef60073f309cb1c45a5097735b05ea4874e930429fcab9e2b430fca172
25/06/2026
→VirusTotal↓Download Sample
Filename: WinRar.exe
3dbaf616dcaacfcf66909b7a3404d1536f9e0d230b3b59934f1ccc6fe3e20554
24/06/2026
→VirusTotal↓Download Sample
Filename: AsyncClient.exe
7adeac778393f2889190521e4a72153903bff700790a50d76f6d4df05f99ca83
23/06/2026
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the system, delete regsvr32123.exe and related artifacts, remove registry Run key entries, and conduct credential reset due to potential remote access compromise.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 22/04/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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