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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/Cryware!rfn
Classification:
Type:Trojan
Platform:Win32
Family:Cryware
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 Cryware

Summary:

Trojan:Win32/Cryware!rfn is a sophisticated Trojan designed to steal sensitive information, likely related to cryptocurrency, and establish persistence on a Win32 system. It extensively abuses legitimate Windows utilities like rundll32, regsvr32, mshta, PowerShell, BITS, and scheduled tasks for execution, persistence, and evasion. The threat employs API hooking, data encoding, remote file copying, and file deletion to achieve its objectives and cover its tracks.

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: 25daa47bdd6e95d0820a36b2d88670e8.exe
479acf6c5367318dd4c1285cd7c910d54e16372f92caacbe9bbbb72321dd7389
31/01/2026
→VirusTotal↓Download Sample
Filename: 6cc3e7ef09fea2a6795295260bf4cf3377729e32fe859ad70b8a309e9f8fb80a
6cc3e7ef09fea2a6795295260bf4cf3377729e32fe859ad70b8a309e9f8fb80a
31/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected system from the network. Perform a full, deep scan with an updated antivirus solution and remove all detected malicious files. Manually verify and remove any persistence mechanisms (e.g., scheduled tasks, registry entries, startup folders) and review system logs for suspicious activity. Due to the nature of 'Cryware', assume compromised credentials and reset all critical passwords, especially those related to financial accounts or cryptocurrency wallets.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 31/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊