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Linux.Siggen.6232

Added to the Dr.Web virus database: 2023-12-16

Virus description added:

Technical Information

Malicious functions:
Removes itself
Gains root privileges
Launches itself as a daemon
Substitutes application name for:
  • (null)
Launches processes:
  • netstat -nlp | grep \x27:22 \x27 | awk \x27{print $7}\x27 | cut -d/ -f1
  • grep :111
  • netstat -nlp
  • grep :40326
  • /usr/bin/mawk awk -F: {print $NF}
  • pgrep -o .
  • cut -d/ -f1
  • grep :50801
  • netstat -nlp | grep \x27:111 \x27 | awk \x27{print $7}\x27 | cut -d/ -f1
  • sort -u
  • /usr/bin/mawk awk /^tcp/ {print $4}
  • netstat -nlp | grep \x27:25 \x27 | awk \x27{print $7}\x27 | cut -d/ -f1
  • netstat -nlp | grep \x27:40326 \x27 | awk \x27{print $7}\x27 | cut -d/ -f1
  • netstat -nlp | grep \x27:50801 \x27 | awk \x27{print $7}\x27 | cut -d/ -f1
  • grep :22
  • grep :25
  • /usr/bin/mawk awk {print $7}
  • netstat -nlp | awk \x27/^tcp/ {print $4}\x27 | awk -F\x27:\x27 \x27{print $NF}\x27 | sort -u
Kills system processes:
  • sshd
Kills the following processes:
  • rpcbind
  • exim4
  • rpc.statd
  • systemd
Performs operations with the file system:
Deletes folders:
  • /null
  • /xconsole
  • /var/log/syslog
  • /var/log/daemon.log
  • /0
Creates or modifies files:
  • /etc/resolv.conf
  • /dev/pts/0
Deletes files:
  • /null
  • /xconsole
  • /var/log/syslog
  • /var/log/daemon.log
  • /0
Network activity:
Establishes connection:
  • 8.#.8.8:53
  • 17#.##.210.229:1440
Sends data to the following servers:
  • 17#.##.210.229:1440
Receives data from the following servers:
  • 17#.##.210.229:1440
Other:
Collects CPU information
Collects RAM information

Curing recommendations


Linux

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