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Linux.BackDoor.Tsunami.884

Added to the Dr.Web virus database: 2018-04-15

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Launches processes:
  • /root/c855a922
  • sh -c crontab -l>out.ct
  • crontab -l
  • sh -c cat out.ct | grep -v c855a922 >ct.out
  • grep -v c855a922
  • cat out.ct
  • sh -c echo \"*/10 * * * * /root/c855a922 >/dev/null 2>&1\" >>ct.out
  • sh -c crontab ct.out;rm -f out.ct;rm -f ct.out
  • crontab ct.out
  • rm -f out.ct
  • rm -f ct.out
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.bTaaRE
Creates or modifies files:
  • /root/c855a922
  • /root/c855a922.o
  • /root/out.ct
  • /var/spool/cron"/ct.out
  • /root/ct.out
  • /var/spool/cron"/crontabs/tmp.bTaaRE
  • /var/spool/cron/crontabs/tmp.bTaaRE
Deletes files:
  • <SAMPLE_FULL_PATH>"
  • /var/spool/cron"/out.ct"
  • /var/spool/cron"/ct.out"
Network activity:
Connects to the following servers over the IRC protocol:
  • Server: 19#.#28.235.204; Command: NICK r0ot-drp-c855a922-YJGA\nUSER XAFT localhost localhost :JCBPQD\n
  • Server: 19#.#28.235.204; Command: MODE r0ot-drp-c855a922-YJGA -xi\n
  • Server: 19#.#28.235.204; Command: JOIN #TT :bleh\n
DNS ASK:
  • ww##.omfg.pw

Curing recommendations


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