Trojan.Win32.Akl.bc malware suffers from an insecure permissions vulnerability.
740eb0c39314c0c8686e809a5be79850Discovery / 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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