user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:MSIL/Lazy.GPBX!MTB
Trojan:MSIL/Lazy.GPBX!MTB - Windows Defender threat signature analysis

Trojan:MSIL/Lazy.GPBX!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:MSIL/Lazy.GPBX!MTB
Classification:
Type:Trojan
Platform:MSIL
Family:Lazy
Detection Type:Concrete
Known malware family with identified signatures
Variant:GPBX
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: Trojan - Appears legitimate but performs malicious actions for .NET (Microsoft Intermediate Language) platform, family Lazy

Summary:

Trojan:MSIL/Lazy.GPBX!MTB is a malicious .NET executable detected using machine learning behavioral analysis. It is classified as part of the 'Lazy' family, indicating potential for unwanted or harmful actions on the system.

Severity:
High
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_MSIL_Lazy_GPBX_2147912800_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:MSIL/Lazy.GPBX!MTB"
        threat_id = "2147912800"
        type = "Trojan"
        platform = "MSIL: .NET intermediate language scripts"
        family = "Lazy"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "1"
        strings_accuracy = "Low"
    strings:
        $x_1_1 = {fe 01 39 24 00 00 00 00 00 23 00 [0-16] c1 23 00 00 [0-18] 28 ?? 00 00 0a fe}  //weight: 1, accuracy: Low
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: Server.exe
71090a6478f4eb6ac24f138a6401c848245ee9388fdf33abdf0ef29377200b66
22/01/2026
→VirusTotal↓Download Sample
Filename: 2Client.exe
17c3ca5eeae6f48af796f5a6c3925d5f08ca18489a40980228080089be453db0
30/12/2025
→VirusTotal↓Download Sample
Filename: facquulesnwm.exe
53d2caf655411502709eabbe29b017f9e2ee684f61deeeb4b0f3a56c6bdad26c
24/12/2025
→VirusTotal↓Download Sample
Filename: hyudynjwiqmd.exe
48cb351586972d880f7b8316ad4c0872cb88a7411943465f565eb526dbd7dc10
24/12/2025
→VirusTotal↓Download Sample
Filename: rjvkkwvjcvpo.exe
044d8e41acb7ef6ad30c8e74f48044d7811d2d8110f088f281ebc697525b3b48
24/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Quarantine and remove the detected file. Conduct a full system scan with updated antivirus software to identify and remove any related malware.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 24/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊