Edit Report

Our sensors found this exploit at:

Below is a copy:

Backdoor.Win32.Bifrose.uw / Insecure Permissions
Discovery / credits: Malvuln - (c) 2022
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.Bifrose.uw
Vulnerability: Insecure Permissions 
Description: The malware writes a ".EXE" file with insecure permissions to c drive granting change (C) permissions to the authenticated user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges. 
Family: Bifrose
Type: PE32
MD5: 9e4f942c60044feef0fb48538ffac383
Vuln ID: MVID-2022-0535
Disclosure: 04/06/2022

               NT AUTHORITY\SYSTEM:(ID)F
               NT AUTHORITY\Authenticated Users:(ID)C

 Volume in drive C has no label.

 Directory of C:\

02/09/2013  06:44 PM            72,407 SVCHOST.EXE
               1 File(s)         72,407 bytes

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