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Backdoor.Win32.VB.pld / Insecure Transit

CVE Category Price Severity
CWE-4 $500 High
Author Risk Exploitation Type Date
Unknown High Remote 2021-06-14
CVSS EPSS EPSSP
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021060078

Below is a copy:

Backdoor.Win32.VB.pld / Insecure Transit
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/6ff35087d789f7aca6c0e3396984894e.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.VB.pld
Vulnerability: Insecure Transit
Description: The malware listens on TCP port 4000 and has a chat feature "Hnadle-X Pro V1.0 Text Chat". Messages are passed in unencrypted plaintext across the network. Well positioned third-party attackers who can intercept traffic will have the ability to read all communications.
Type: PE32
MD5: 6ff35087d789f7aca6c0e3396984894e
Vuln ID: MVID-2021-0247
Disclosure: 06/13/2021

Exploit/PoC:
Wireshark capture...

0000   00 XX XX XX XX XX 00 XX XX XX XX XX XX 00 45 00  ..).....)R....E.
0010   00 3a de 15 40 00 80 06 00 00 c0 a8 12 82 c0 a8  .:..@...........
0020   12 7f d6 7a 0f a0 ad 5a 61 21 99 e6 9a 95 50 18  ...z...Za!....P.
0030   20 14 a6 7e 00 00 44 20 49 20 64 6f 6e 74 20 6c   ..~..D I dont l
0040   69 6b 65 20 79 6f 75 0a                          ike you.


0000   00 XX XX XX XX XX 00 XX XX XX XX XX XX 00 45 00  ..)R....).....E.
0010   00 40 46 24 40 00 80 06 0e 42 c0 a8 12 7f c0 a8  .@[email protected]......
0020   12 82 0f a0 d6 7a 99 e6 9a 95 ad 5a 61 33 50 18  .....z.....Za3P.
0030   08 04 5b 15 00 00 44 54 49 20 64 6f 6e 74 20 6c  ..[...DTI dont l
0040   69 6b 65 20 79 6f 75 20 65 69 74 68 65 72        ike you either


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