user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat TrojanDownloader:Script/Obfuse.HNAA!MTB
TrojanDownloader:Script/Obfuse.HNAA!MTB - Windows Defender threat signature analysis

TrojanDownloader:Script/Obfuse.HNAA!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: TrojanDownloader:Script/Obfuse.HNAA!MTB
Classification:
Type:TrojanDownloader
Platform:Script
Family:Obfuse
Detection Type:Concrete
Known malware family with identified signatures
Variant:HNAA
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 Downloader - Downloads additional malware for Script platform, family Obfuse

Summary:

This is a highly obfuscated script-based trojan downloader detected through machine learning behavioral analysis. It leverages system utilities like mshta, regsvr32, rundll32, and PowerShell, along with API hooking and scheduled tasks, to download additional malicious payloads, establish persistence, and potentially execute further commands.

Severity:
High
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: sh
1b7dd75cc121342a4d6df7df4ff39f368823da4dd284eba2170c812838d7a7df
13/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the infected system immediately. Perform a full system scan with updated antivirus/EDR and manually remove all associated malicious scripts, files, scheduled tasks, and registry entries. Investigate for signs of additional payloads, lateral movement, or data exfiltration, and consider re-imaging the system for complete eradication if unsure.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 13/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊