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:
Filename: 0fecb72b1e5b1fc4f5a00fec90beb85b22b6ec9be8139dd4cdf448087decefd5.exe
0fecb72b1e5b1fc4f5a00fec90beb85b22b6ec9be8139dd4cdf448087decefd5
05/10/2026
→VirusTotal↓Download Sample
Filename: 5f12438f708cb1b78262307a5357870c3915a9397872e7fb8166c60ab58ea3ea.exe
5f12438f708cb1b78262307a5357870c3915a9397872e7fb8166c60ab58ea3ea
05/10/2026
→VirusTotal↓Download Sample
Filename: 073daa6a559f6dfba73f388a9c7451c53515c359c2a4b666fc4f46b2f2bad5f3.exe
073daa6a559f6dfba73f388a9c7451c53515c359c2a4b666fc4f46b2f2bad5f3
05/10/2026
→VirusTotal↓Download Sample
Filename: 43d465e80dc34e3aa79c228e61404c83bab19afa63545f47d49435a8ff208fd5.exe
43d465e80dc34e3aa79c228e61404c83bab19afa63545f47d49435a8ff208fd5
04/10/2026
→VirusTotal↓Download Sample
Filename: 5854b1c0839d6388d6d006338303337dd1de5001dcdff10dd13080a17b71fb87.exe
5854b1c0839d6388d6d006338303337dd1de5001dcdff10dd13080a17b71fb87
03/10/2026
→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
user@threatcheck.sh:~$ ▊