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Aggiunto al database dei virus Dr.Web: 2017-11-15

La descrizione è stata aggiunta:


  • e43fd0752b8c03ffae628a6b83e2a03944f11f4e

A backdoor for Linux operating systems. It was detected in the libz library. During its operation, the Trojan intercepts calling of the following system functions: __libc_start_main, sscanf, __syslog_chk, fopen, and fgets. It is initialized in __libc_start_main; the main code is located in the sscanf function. It operates only with binary files that ensure data transfers via the SSH protocol. It fails to operate if the launched file name is the same as /usr/sbin/sshds. For external connection, it doesn’t use a currently open socket. Instead it uses the first open socket out of 1,024. After this, the socket is moved to the zero descriptor, and the remaining 1,023 are shut down.

The connection protocol is encrypted using the RC4 algorithm; strings are also encrypted. The backdoor can execute the following commands:

execRun a binary fileFile name
tcpConnect to host:porthost, port
upDownload a fileFile name

News about the Trojan

Curing recommendations


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Sviluppatore russo degli antivirus Dr.Web
Esperienza di sviluppo dal 1992
Dr.Web viene utilizzato in 200+ paesi del mondo
L'antivirus viene fornito come un servizio dal 2007
Supporto ventiquattro ore su ventiquattro

Dr.Web © Doctor Web
2003 — 2020

Doctor Web — sviluppatore russo dei software di protezione antivirus delle informazioni Dr.Web. I prodotti Dr.Web vengono sviluppati fin dal 1992.

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