Backdoor.Win32.Cafeini.b / Denial of Service

[malvuln <malvuln13 () gmail com>]

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/b24c56abb4bde960c2d51d4e509d2c68.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Cafeini.b
Vulnerability: Denial of Service
Family: Cafeini
Type: PE32
MD5: b24c56abb4bde960c2d51d4e509d2c68
Vuln ID: MVID-2022-0525
Disclosure: 03/25/2022
Description: The malware listens on TCP port 51966 and is packed by a
modified UPX implementation. Third-party adversaries who can reach an
infected system can terminate the malware by issuing the cmd DIEDIEDIE,
without being required to authenticate.

UPX1:004560B4 aDiediedie      db 'DIEDIEDIE',0        ; DATA XREF:
sub_406C68:loc_40739E
UPX1:004560B4                                         ; sub_40DB4D+255B
UPX1:004560BE                 align 10h

Exploit/PoC:
C:\>nc64.exe x.x.x.x 51966
 CAFEiNi 1.1
Enter your password:
DIEDIEDIE

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