Backdoor.Win32.Jtram.a / Insecure Credential Storage

[malvuln <malvuln13 () gmail com>]

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/596882dfba543b23ad3225d24ee5e800.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Jtram.a
Vulnerability: Insecure Credential Storage
Description: The malware listens on TCP port 1321 as an FTP server. The
credentials are stored in cleartext in a file named "rconnect.conf.
Type: PE32
MD5: 596882dfba543b23ad3225d24ee5e800
Vuln ID: MVID-2022-0442
Disclosure: 01/05/2022

Exploit/PoC:
C:\Windows\walker\rconnect.conf

"rconnect.conf"

LicenseName "thanksKRUPT"
LicenseKey "8337B4C8:7A6C84D2"
MaxConnections 100
BindInterface All
BindPort 1321
CommandTimeout 300
ConnectTimeout 15
LookupHosts On
<User "common ">
Password "common "
Mount / C:\WINDOWS\walker
Allow / Read List
</User>

<User "common">
Password "common"
Mount / C:\WINDOWS\walker
Allow / Read List


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