user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:MSIL/Crysan!atmn
Backdoor:MSIL/Crysan!atmn - Windows Defender threat signature analysis

Backdoor:MSIL/Crysan!atmn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:MSIL/Crysan!atmn
Classification:
Type:Backdoor
Platform:MSIL
Family:Crysan
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 Crysan

Summary:

Backdoor:MSIL/Crysan!atmn is a concrete detection of a backdoor malware that allows unauthorized access to the compromised system. It is part of the Crysan family, which is known for its malicious activities. The malware is written in MSIL, indicating it is .NET based.

Severity:
High
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: BF6external.exe
fc018dca8633efde8ad35521e6486fcae98149994ac545d8e14551aba701aeb2
12/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Run a full system scan with Windows Defender, remove the detected threat, and perform a thorough review of system configurations and logs to ensure no other malicious components are present.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 12/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊