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

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

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

Summary:

Trojan:Win32/Tilcun!rfn is a confirmed malicious program detected on a Win32 platform. This Trojan likely establishes persistence by modifying the Windows Registry (indicated by `\winsys.reg`) and could interfere with or hijack program execution through shell execute hooks (indicated by `\ShellExecuteHooks`), allowing it to maintain control and execute arbitrary code.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - \winsys.reg (PEHSTR_EXT)
 - \ShellExecuteHooks] (PEHSTR_EXT)
 - \ShellExecuteHooks (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: virussign.com_b082e03688fff14ce9f6d062c1a41d00
37e5f03feec4e01dda142afcafdaacc137cdfec4f895e80307785b9620caa25c
22/03/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system to prevent further spread. Perform a full, deep scan with an updated antivirus solution to quarantine and remove all detected malicious files and associated registry entries. Review system startup locations and registry for any persistent entries, and consider a system restore from a known clean backup if unsure of complete eradication.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 22/03/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊