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

Trojan:VBS/GuLoader.RBK!MTB - Windows Defender Threat Analysis

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

Summary:

Trojan:VBS/GuLoader.RBK!MTB is a VBScript-based GuLoader variant, a sophisticated downloader detected through machine learning behavioral analysis. This threat is designed to fetch and execute secondary malware payloads, such as information stealers or remote access Trojans, often using deceptive process names like dolcan.exe or amalgameret.exe.

Severity:
High
VDM Static Detection:
Relevant strings associated with this threat:
 - dolcan.exe (PEHSTR_EXT)
 - Regions Financial Corp. (PEHSTR_EXT)
 - amalgameret.exe (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: Orders_502_30_pdf.vbs
98d73d3a7bbc47cdfbd869fe511e9164a1aab7bcf1d4996ba2f99506a82395df
30/01/2026
→VirusTotal↓Download Sample
Filename: Booking_108_pdf.vbs
e6f300bff6975e878e39b0575190ab7b40349f41b8f442906169c8b6a19a7a5e
30/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected system to prevent further compromise. Perform a full system scan with updated antivirus software to remove the detected Trojan and any secondary malware payloads it may have dropped. Investigate for persistence mechanisms, unauthorized network connections, and signs of additional compromise. Consider a system reimage if a deep or complex infection is suspected.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 30/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊