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

Backdoor:Win32/Berbew!pz - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Win32/Berbew!pz
Classification:
Type:Backdoor
Platform:Win32
Family:Berbew
Detection Type:Concrete
Known malware family with identified signatures
Suffix:!pz
Packed or compressed to evade detection
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for 32-bit Windows platform, family Berbew

Summary:

Backdoor:Win32/Berbew!pz is a concrete detection of a sophisticated backdoor from the Berbew family. It establishes remote access, maintains persistence via methods like scheduled tasks, and executes commands using legitimate tools such as PowerShell, rundll32, and regsvr32. This threat is designed for extensive system control, data exfiltration, and further malicious activity.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - io\Programas\Inicio\ (PEHSTR_EXT)
 - \WINME\M (PEHSTR_EXT)
 - !#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:StringCodeForFileDeletion.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.M!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForNetshHelperDLL.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteServices.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForSoftwarePacking.C!pli (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: 5f34e1af5ffacee0810fa07121f09769d796e619e868aa20b317dbc9d72578b4
5f34e1af5ffacee0810fa07121f09769d796e619e868aa20b317dbc9d72578b4
09/06/2026
→VirusTotal↓Download Sample
3ea33da21e2745965c0f2884a7050635d9e72b6f72df48bb763ebbc810a88aca
07/06/2026
→VirusTotal↓Download Sample
Filename: 3953a675ba8ca1bda87df3d751ff5d7013a94f8f4c9cdb140d26833fa39d23a2
3953a675ba8ca1bda87df3d751ff5d7013a94f8f4c9cdb140d26833fa39d23a2
06/06/2026
→VirusTotal↓Download Sample
Filename: 362df35906c51bcf799b7afe4f85dcf721a286a9a68c38862eefa2cdb403ba7c
362df35906c51bcf799b7afe4f85dcf721a286a9a68c38862eefa2cdb403ba7c
06/06/2026
→VirusTotal↓Download Sample
Filename: 38672563bb7cb452e4b66ae246f99ca20bc64736a204642760c78e6a9a799d71
38672563bb7cb452e4b66ae246f99ca20bc64736a204642760c78e6a9a799d71
06/06/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system, perform a full antivirus scan to remove the threat, and investigate for any persistence mechanisms or lateral movement. Change all credentials used on the compromised machine and consider a full system re-image if deep compromise is suspected.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 22/03/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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