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Linux.Packed.56

Added to the Dr.Web virus database: 2018-03-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following symlinks:
  • /etc/init.d/wipefs"
  • /etc/rc0.d/S01wipefs"
  • /etc/rc1.d/S01wipefs"
  • /etc/rc2.d/S01wipefs"
  • /etc/rc3.d/S01wipefs"
  • /etc/rc4.d/S01wipefs"
  • /etc/rc5.d/S01wipefs"
  • /etc/rc6.d/S01wipefs"
Malicious functions:
Launches itself as a daemon
Launches processes:
  • sh -c
  • sh -c /tmp/tmpnam_GNKLAM upgrade >/dev/null 2>&1; rm /tmp/tmpnam_GNKLAM >/dev/null 2>&1
  • cp -f <SAMPLE_FULL_PATH> /bin/wipefs
  • /tmp/tmpnam_GNKLAM upgrade
  • /bin/sh ##which ss 1>/dev/null 2>&1
  • which ss
  • ln -fs /bin/wipefs /etc/init.d/wipefs
  • /bin/sh ##which ss
  • ln -fs /etc/init.d/wipefs /etc/rc0.d/S01wipefs
  • ln -fs /etc/init.d/wipefs /etc/rc1.d/S01wipefs
  • /bin/sh ##which netstat 1>/dev/null 2>&1
  • ln -fs /etc/init.d/wipefs /etc/rc2.d/S01wipefs
  • which netstat
  • ln -fs /etc/init.d/wipefs /etc/rc3.d/S01wipefs
  • ln -fs /etc/init.d/wipefs /etc/rc4.d/S01wipefs
  • ln -fs /etc/init.d/wipefs /etc/rc5.d/S01wipefs
  • ln -fs /etc/init.d/wipefs /etc/rc6.d/S01wipefs
  • /bin/sh ##chattr -i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat 1>/dev/null 2>&1
  • ln -fs /etc/init.d/wipefs /etc/rc.d/rc0.d/S01wipefs
  • chattr -i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat
  • ln -fs /etc/init.d/wipefs /etc/rc.d/rc1.d/S01wipefs
  • ln -fs /etc/init.d/wipefs /etc/rc.d/rc2.d/S01wipefs
  • /bin/sh ##cp -f /tmp/tmpnam_GNKLAM /bin/ddus-uidge
Performs operations with the file system:
Modifies file access rights:
  • /tmp/tmpnam_GNKLAM
Creates or modifies files:
  • /etc/resolv.conf
  • /tmp/tmpnam_GNKLAM
  • /bin/wipefs

Curing recommendations


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