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

Trojan:Win32/ShellCodeRunner.NZL!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/ShellCodeRunner.NZL!MTB
Classification:
Type:Trojan
Platform:Win32
Family:ShellCodeRunner
Detection Type:Concrete
Known malware family with identified signatures
Variant:NZL
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 ShellCodeRunner

Summary:

This threat is a trojan identified by its behavior as a shellcode runner. Its primary function is to execute malicious code in memory, a common technique used to bypass security controls and download additional malware payloads.

Severity:
Medium
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Win32_ShellCodeRunner_NZL_2147942096_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Win32/ShellCodeRunner.NZL!MTB"
        threat_id = "2147942096"
        type = "Trojan"
        platform = "Win32: Windows 32-bit platform"
        family = "ShellCodeRunner"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "9"
        strings_accuracy = "Low"
    strings:
        $x_5_1 = {8b c3 8b 5d f0 88 0c 3a 8b 55 e0 0f b6 0c 02 0f b6 04 3a 03 c8 83 7e ?? 0f 0f b6 c1 8b ce 89 45 ec 76}  //weight: 5, accuracy: Low
        $x_4_2 = {8a 0c 01 32 0c 16 8b 53 ?? 88 4d ff 3b 53 08 74}  //weight: 4, accuracy: Low
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
33007149b2e210384c82ebdc51994db576e71149c39d43dd46cb973c551eb21c
15/11/2025
→VirusTotal↓Download Sample
0b586f16ba08538d8779a08b19004993f2bad1aa936ef2e75899c24133309357
15/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the affected system from the network. Use your security software to remove the threat and perform a full system scan. Investigate for signs of further compromise, such as unusual network traffic or persistence mechanisms, as this threat may have downloaded other malware.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 15/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊