user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Win32/Solorigate.BR!MTB
Backdoor:Win32/Solorigate.BR!MTB - Windows Defender threat signature analysis

Backdoor:Win32/Solorigate.BR!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Win32/Solorigate.BR!MTB
Classification:
Type:Backdoor
Platform:Win32
Family:Solorigate
Detection Type:Concrete
Known malware family with identified signatures
Variant:BR
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: Backdoor - Provides unauthorized remote access for 32-bit Windows platform, family Solorigate

Summary:

This detection identifies a variant of the sophisticated Backdoor:Win32/Solorigate (SUNBURST) malware, confirmed to target the SolarWinds Orion business layer DLL. Leveraging machine learning behavioral analysis, it employs advanced techniques such as abusing legitimate Windows utilities (e.g., rundll32, PowerShell), API hooking, and scheduled tasks for persistence, covert remote access, and data exfiltration.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - \SolarWinds\Orion\SolarWinds.Orion.Core.BusinessLayer.dll (ASEP_FILEPATH)
 -  (x86)\SolarWinds\Orion\SolarWinds.Orion.Core.BusinessLayer.dll (ASEP_FILEPATH)
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)
Remediation Steps:
Immediately isolate the affected system, remove the malicious file, and conduct a thorough incident response investigation for further compromise, including potential lateral movement, data exfiltration, and persistence mechanisms. Apply all available security updates, especially for SolarWinds products if applicable, and reset relevant credentials.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 04/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊