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

Trojan:Win32/ReverseShell.GXT!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/ReverseShell.GXT!MTB
Classification:
Type:Trojan
Platform:Win32
Family:ReverseShell
Detection Type:Concrete
Known malware family with identified signatures
Variant:GXT
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 32-bit Windows platform, family ReverseShell

Summary:

This is a concrete detection of Trojan:Win32/ReverseShell.GXT!MTB, a malicious program that establishes a reverse shell connection from the compromised Windows system to an attacker-controlled server, granting unauthorized remote control. The threat was identified through machine learning behavioral analysis and has a low false positive risk, indicating high confidence in its malicious nature.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Win32_ReverseShell_GXT_2147951014_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Win32/ReverseShell.GXT!MTB"
        threat_id = "2147951014"
        type = "Trojan"
        platform = "Win32: Windows 32-bit platform"
        family = "ReverseShell"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "10"
        strings_accuracy = "Low"
    strings:
        $x_5_1 = {8d 85 50 fe ff ff 89 44 24 04 8b 45 f0 89 04 24 a1 ?? ?? ?? ?? ff d0 83 ec 0c 85 c0}  //weight: 5, accuracy: Low
        $x_5_2 = {ff d0 83 ec 18 89 45 f0 66 c7 85 ?? ?? ?? ?? 02 00 8b 45 f4 0f b7 c0 89 04 24 a1 ?? ?? ?? ?? ff d0 83 ec 04 66 89 85 52 fe ff ff c7 04 24 ?? ?? ?? ?? a1 ?? ?? ?? ?? ff d0 83 ec 04 89 85}  //weight: 5, accuracy: Low
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: rev2.exe
08790f082e9636f095ba679f927a35bb945b5e680d9c62f5029364698171623f
10/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected system from the network to prevent further compromise or data exfiltration. Perform a full system scan with updated antivirus software to remove the threat and any associated files. Investigate for persistence mechanisms, identify the initial infection vector, and review network logs for C2 communication attempts.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 10/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊