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

Trojan:Win32/GuLoader.SD!MTB - Windows Defender Threat Analysis

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

Summary:

This detection identifies GuLoader, a sophisticated downloader trojan known for its advanced evasion techniques. Its primary function is to download and execute a secondary, more dangerous payload onto the compromised system, such as a Remote Access Trojan (RAT) or an information stealer.

Severity:
Medium
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: 12411225.exe
b77a470abcad2acdddec07438813988ed2fd51fc4215ab1e8b803c7df3f90539
13/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the host from the network immediately. Use the security tool to quarantine and remove the detected file. Investigate for persistence mechanisms and signs of a secondary payload, as GuLoader's purpose is to install other malware. Reset credentials for any user who logged into the machine.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 13/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊