Backdoor.Win32.InfecDoor.17.c MVID-2022-0614 Insecure Permissions

Backdoor.Win32.InfecDoor.17.c malware suffers from an insecure permissions vulnerability.

SHA-256 | 3d83874665d92c5753ea0f979739fbb96e5a47c3ff77657f79b68a13a96e6218

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.InfecDoor.17.c
Vulnerability: Insecure Permissions
Description: The malware writes a ".420" settings file type to c drive granting change (C) permissions to the authenticated user group. Standard users can rename the file dropped by the malware to disable, change its settings or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.
Family: InfecDoor
Type: PE32
MD5: 1fd70e41918c3a75c634b1c234ec36fb
Vuln ID: MVID-2022-0614
Disclosure: 06/23/2022

C:\>cacls Infector.420
C:\Infector.420 BUILTIN\Administrators:(ID)F
NT AUTHORITY\Authenticated Users:(ID)C

C:\>dir Infector.420
Volume in drive C has no label.

Directory of C:\

04/11/2022 03:29 AM 36 Infector.420
1 File(s) 36 bytes
0 Dir(s) 24,644,292,608 bytes free

C:\>type Infector.420

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