Email-Worm.Win32.Deltad malware suffers from an insecure permissions vulnerability.
e869cdd78defd596d638d9f58f2601c1Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/33f1dc8cf5987751ac0f063601f1c324.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Email-Worm.Win32.Deltad
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: 33f1dc8cf5987751ac0f063601f1c324
Vuln ID: MVID-2021-0409
Disclosure: 11/25/2021
Exploit/PoC:
C:\WWW.DGSAP.DELTADG.COM.EXE BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
C:\>dir WWW.DGSAP.DELTADG.COM.EXE
Volume in drive C has no label.
Directory of C:\
11/24/2021 09:19 PM 217,347 WWW.DGSAP.DELTADG.COM.EXE
1 File(s) 217,347 bytes
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