user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:Win32/Seheq!rfn
Trojan:Win32/Seheq!rfn - Windows Defender threat signature analysis

Trojan:Win32/Seheq!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/Seheq!rfn
Classification:
Type:Trojan
Platform:Win32
Family:Seheq
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: Trojan - Appears legitimate but performs malicious actions for 32-bit Windows platform, family Seheq

Summary:

Trojan:Win32/Seheq!rfn is a multi-faceted trojan that leverages legitimate Windows utilities (LOLBins) like PowerShell, mshta, and rundll32 to execute malicious code. It establishes persistence through methods like scheduled tasks, employs API hooking to evade detection, and has capabilities for downloading additional payloads or exfiltrating data.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - !#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: TeamsSetup_v7.850.exe
326bec0147517a2735cba6dc1604d538f33cbc5ad82a3cf24585a00940bada0f
03/12/2025
→VirusTotal↓Download Sample
Filename: sentinelagentcore.dll
fc58ae120d35b751525f6c312f9aeff75e9151f02fa113815bd01acc49f63596
13/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the affected system from the network immediately. Run a full antivirus scan with updated definitions to remove the threat. Manually investigate and remove persistence mechanisms such as suspicious scheduled tasks, registry keys, and Netsh helper DLLs. Change all user and system credentials associated with the machine.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 13/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊