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: VelocityLite.exe
b405513249de55aa8da7e970475fd42c0057f6cc1a8b91c04ff38b59a18ae9ca
15/07/2026
→VirusTotal↓Download Sample
Filename: Client.exe
297dc0ceca30c0746b01354486eae850a8359f1a20483c69a54686d146494799
18/05/2026
→VirusTotal↓Download Sample
Filename: Cliexadnt.exe
1f7fc48f3a67f98551503e2370375849884c2ceddf290423f794d137fad186d5
18/05/2026
→VirusTotal↓Download Sample
Filename: K.exe
c2787aaf09af7973cf3307a2984cf8e8b79cfa196baab7ffecb6ed365c2ff900
18/05/2026
→VirusTotal↓Download Sample
Filename: f1ae31a1_.exe
86f697c2c9f941a7caa7336879a42b61fe8ddd8a5d210bdac6d624104ad48907
04/05/2026
→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:~$ ▊