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

PWS:MSIL/Polazert!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: PWS:MSIL/Polazert!rfn
Classification:
Type:PWS
Platform:MSIL
Family:Polazert
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: Password Stealer - Steals credentials and sensitive information for .NET (Microsoft Intermediate Language) platform, family Polazert

Summary:

PWS:MSIL/Polazert!rfn is a confirmed .NET-based credential stealer designed to exfiltrate sensitive data, including browser form history and login credentials, and potentially RDP information. It establishes persistence and evades detection using various system utilities like rundll32, powershell, BITS jobs, and scheduled tasks.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - Win32_ComputerSystem.Name='{0}' (PEHSTR_EXT)
 - GetComputerName (PEHSTR_EXT)
 - http:// (PEHSTR_EXT)
 - *.rdp (PEHSTR_EXT)
 - \default.rdp (PEHSTR_EXT)
 - formhistory.sqlite (PEHSTR_EXT)
 - logins.json (PEHSTR_EXT)
 - deimos.dll (PEHSTR_EXT)
 - HttpWebResponse (PEHSTR_EXT)
 - HttpStatusCode (PEHSTR_EXT)
 - System.Text (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: client.exe
83a3a48e8998fe74853161d31476c613d6eaf05f618446dd9d9b1016ada44822
07/09/2026
→VirusTotal↓Download Sample
Filename: client.exe
4ae3908e2daf0d4ddf63935ef64b29d1707d217354168bad94bbdfec85e045f5
07/09/2026
→VirusTotal↓Download Sample
Filename: WinSystemHost.exe
1ae6cb0cdcf57b0ea68a04c7b83892c00ed6f73594d8f0b5c5742a5fcbf9b009
07/09/2026
→VirusTotal↓Download Sample
Filename: anubis_16d850695bde07a2_1768159929145.exe
a0e2ed2550ed0bf5b27295fb6252dbec216a70342380705f2f74f88445e0a486
13/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected system, remove the detected malware, and force password resets for all accounts used on the device. Conduct a comprehensive system scan to identify and eliminate any remaining malicious components or persistence mechanisms, and monitor network activity for C2 communication.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 13/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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