| tiêu đề | Backdoor.Win32.Jeemp.c Backdoor.Win32.Jeemp.c * Cleartext Hardcoded Credentials |
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| Mô tả | Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2024
Original source: https://malvuln.com/advisory/d6b192a4027c7d635499133ca6ce067f.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Jeemp.c
Vulnerability: Cleartext Hardcoded Credentials
Description: The malware listens on three TCP ports which are randomized e.g. 9719,7562,8687,8948,7376,8396 so forth. There is an ESMTP server component "jeem.mail.pv" requiring authentication for the GDATA, SDATA commands and sample is packed using UPX. However, it is trivial to unpack using the -d flag which reveals the cleartext hardcoded credentials "jeepower" and "jeespower" in the PE file.
Family: Jeemp
Type: PE32
MD5: d6b192a4027c7d635499133ca6ce067f
Vuln ID: MVID-2024-0672
Dropped files: msrexe.exe
Disclosure: 02/28/2024
Exploit/PoC:
TELNET x.x.x.x 7562
220 jeem.mail.pv ESMTP
HELO hate
250 ok
GDATA
250 ok
Need password
jeepower
[prx]#######
250 ok
SDATA
250 ok
Need password
abc123!
503 wrong!
SDATA
250 ok
Need password
jeespower
250 ok
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). |
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| Nguồn | ⚠️ https://malvuln.com/advisory/d6b192a4027c7d635499133ca6ce067f.txt |
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| Người dùng | malvuln (UID 14984) |
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| Đệ trình | 29/02/2024 03:07 (cách đây 2 những năm) |
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| Kiểm duyệt | 10/03/2024 07:42 (10 days later) |
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| Trạng thái | được chấp nhận |
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| Mục VulDB | 256316 [Backdoor.Win32.Jeemp.c ESMTP Server xác thực yếu] |
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| điểm | 20 |
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