Trojan.Win32.Akl.bc Insecure Permissions

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/0b2a0f61a209e24a7d7b2c2d5efb4d68.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Trojan.Win32.Akl.bc  
Vulnerability: Insecure Permissions  
Description: The malware creates an dir named "LMPITF" with insecure permissions under Windows\SysWOW64 granting full (F) permissions to the Everyone 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.  
Type: PE32  
MD5: 0b2a0f61a209e24a7d7b2c2d5efb4d68  
Vuln ID: MVID-2021-0370  
Dropped files: AKV.exe, QPM.exe  
Disclosure: 10/27/2021  
  
Exploit/PoC:  
C:\>cacls C:\Windows\SysWOW64\LMPITF  
C:\Windows\SysWOW64\LMPITF Everyone:F  
Everyone:(OI)(CI)(IO)F  
  
C:\>dir C:\Windows\SysWOW64\LMPITF  
Volume in drive C has no label.  
  
Directory of C:\Windows\SysWOW64\LMPITF  
  
10/16/2021 10:31 PM 467,456 AKV.exe  
10/16/2021 10:31 PM 62,464 QPM.001  
10/16/2021 10:31 PM 44,032 QPM.002  
10/16/2021 10:31 PM 1,602 QPM.004  
10/16/2021 10:31 PM 1,544,192 QPM.exe  
5 File(s) 2,119,746 bytes  
  
  
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