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

Backdoor:MSIL/XWormRAT.A!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:MSIL/XWormRAT.A!MTB
Classification:
Type:Backdoor
Platform:MSIL
Family:XWormRAT
Detection Type:Concrete
Known malware family with identified signatures
Variant:A
Specific signature variant within the malware family
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for .NET (Microsoft Intermediate Language) platform, family XWormRAT

Summary:

Backdoor:MSIL/XWormRAT.A!MTB is a concrete detection of a sophisticated Remote Access Trojan (RAT) family known as XWormRAT, identified through machine learning behavioral analysis. This malware enables attackers to gain full remote control over the compromised system, potentially facilitating data exfiltration, surveillance, and further malicious actions. Its use of encryption and temporary file management indicates stealthy operation and payload deployment.

Severity:
High
VDM Static Detection:
Relevant strings associated with this threat:
 - cipher.NewCFBDecrypter (PEHSTR_EXT)
 - ioutil.TempDir (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: XWormClient.exe
8b6bfb75c79e5c9e864d049520dbfa4524ca66177cbdea32a6671bc922a0e524
31/12/2025
→VirusTotal↓Download Sample
Filename: a.exe
01e97451a9983dda69144cab8fbf5a053eb012a94c89a14e3437ad66862bc3f5
25/12/2025
→VirusTotal↓Download Sample
Filename: XClient.exe
da7eb889527f8d132c6fede94dd354e8d3558658b4ef0e9584c6cb8f3c57bfde
23/12/2025
→VirusTotal↓Download Sample
Filename: dwm.exe
4f5c44f2ff5744910b23ba846a1cf3eddc95256aef8b4b1dbc5f02be3c3946fe
14/12/2025
→VirusTotal↓Download Sample
Filename: SystemService.exe
656bcff52518bd53ae865533a6cd7188372ed4766a1c27c6dfacd7d363af8b52
14/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected device from the network to prevent further compromise. Perform a full system scan with updated antivirus software to remove all detected components. Thoroughly investigate for and remove any established persistence mechanisms (e.g., registry entries, scheduled tasks) and reset all user and administrative passwords associated with the system.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 13/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊