Technical Information
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
- /bin/busybox
Replaces the following system files:
- /bin/wget
- /sbin/wget
Launches processes:
- /bin/sh -c cd /bin/; cat tftp > tftp-cpy; cat <SAMPLE_FULL_PATH> > tftp
- cat tftp
- cat <SAMPLE_FULL_PATH>
- /bin/sh -c chmod 777 tftp
- chmod 777 tftp
- /bin/sh -c cd /bin/; cat rm > rm-cpy; cat <SAMPLE_FULL_PATH> > rm
- cat rm
- /bin/sh -c chmod 777 rm
- chmod 777 rm
- /bin/sh -c cd /bin/; cat kill > kill-cpy; cat <SAMPLE_FULL_PATH> > kill
- cat kill
- /bin/sh -c chmod 777 kill
- chmod 777 kill
- /bin/sh -c cd /bin/; cat cd > cd-cpy; cat <SAMPLE_FULL_PATH> > cd
- cat cd
- /bin/sh -c chmod 777 cd
- chmod 777 cd
- /bin/sh -c cd /bin/; cat wget > wget-cpy; cat <SAMPLE_FULL_PATH> > wget
- cat wget
- /bin/sh -c chmod 777 wget
- chmod 777 wget
- /bin/sh -c cd /sbin/; cat tftp > tftp-cpy; cat <SAMPLE_FULL_PATH> > tftp
- /bin/sh -c cd /sbin/; cat rm > rm-cpy; cat <SAMPLE_FULL_PATH> > rm
- /bin/sh -c cd /sbin/; cat kill > kill-cpy; cat <SAMPLE_FULL_PATH> > kill
- /bin/sh -c cd /sbin/; cat cd > cd-cpy; cat <SAMPLE_FULL_PATH> > cd
- /bin/sh -c cd /sbin/; cat wget > wget-cpy; cat <SAMPLE_FULL_PATH> > wget
Kills the following processes:
- agetty
- exim4
- bash
- run.sh
- <SAMPLE>
- systemd
Performs operations with the file system:
Creates or modifies files:
- /bin/tftp-cpy
- /bin/tftp
- /bin/rm-cpy
- /bin/rm
- /bin/kill-cpy
- /bin/kill
- /bin/cd-cpy
- /bin/cd
- /bin/wget-cpy
- /sbin/tftp-cpy
- /sbin/tftp
- /sbin/rm-cpy
- /sbin/rm
- /sbin/kill-cpy
- /sbin/kill
- /sbin/cd-cpy
- /sbin/cd
- /sbin/wget-cpy
Network activity:
Establishes connection:
- 8.#.8.8:53
- 5.###.149.141:9090
Attacks using a special dictionary (brute-force technique) via the Telnet protocol.
Sends data to the following servers:
- 5.###.149.141:9090
Receives data from the following servers:
- 5.###.149.141:9090
Other:
Collects information about network activity