user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat VirTool:MSIL/ResInject!MTB
VirTool:MSIL/ResInject!MTB - Windows Defender threat signature analysis

VirTool:MSIL/ResInject!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: VirTool:MSIL/ResInject!MTB
Classification:
Type:VirTool
Platform:MSIL
Family:ResInject
Detection Type:Concrete
Known malware family with identified signatures
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Virus Tool - Tool used to create or modify malware for .NET (Microsoft Intermediate Language) platform, family ResInject

Summary:

This is a concrete detection of VirTool:MSIL/ResInject!MTB, a sophisticated .NET-based malicious tool that likely employs resource injection. It exhibits a wide array of dangerous behaviors, including API hooking, establishing persistence via scheduled tasks, abusing legitimate Windows utilities (such as rundll32, regsvr32, mshta, PowerShell, and BITS jobs), and capabilities for remote file operations, data encoding, and defense evasion.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - !#HSTR:StringCodeForMshta.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.C!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.D!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.L!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.O!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRegsvr32.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRundll32.A!pli (PEHSTR_EXT)
 - rundll32 (PEHSTR_EXT)
 - !#HSTR:StringCodeForBITSJobs.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForPowerShell.G!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForScheduledTask.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForDataEncoding.D!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.J!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.K!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteFileCopy.B!pli (PEHSTR_EXT)
 - !#HSTR:ExecutionGuardrails (PEHSTR_EXT)
 - !#HSTR:StringCodeForFileDeletion.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.M!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForNetshHelperDLL.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteServices.A!pli (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: calc_protected.exe
cc06b15ba726eef22c4645294a7499a1ffb11b7234b2f0b6a088b89c1697bb37
31/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system to prevent further compromise and spread. Perform a full, deep scan with updated anti-malware software and remove all detected threats. Thoroughly investigate for persistence mechanisms (e.g., scheduled tasks, registry modifications) and signs of lateral movement or data exfiltration. Ensure all systems are patched and enforce strong security controls.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 31/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊