Chaos Ransomware Builder 4 Insecure Permissions

Chaos Ransomware Builder version 4 malware suffers from an insecure permissions vulnerability.

MD5 | c2c268f6fc5d05f302cf1e4ba898e768

Discovery / credits: Malvuln - (c) 2022
Original source:
Contact: [email protected]

Threat: Chaos Ransomeware Builder v4
Vulnerability: Insecure Permissions
Description: The malware writes an .EXE with insecure permissions under 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.
Type: PE32
MD5: 8b855e56e41a6e10d28522a20c1e0341
Vuln ID: MVID-2022-0456
Disclosure: 01/16/2022

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

C:\>dir hate.exe
Volume in drive C has no label.

Directory of C:\

01/11/2022 10:08 PM 23,040 hate.exe
1 File(s) 23,040 bytes

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