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Linux.Packed.541

Aggiunto al database dei virus Dr.Web: 2019-08-05

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/init.d/rcS.bak
  • /etc/init.d/rcS
Malicious functions:
Removes itself
Launches itself as a daemon
Substitutes application name for:
  • -bash
Modifies firewall settings:
  • iptables -F
Launches processes:
  • umount /proc/*
  • /usr/sbin/.developer <SAMPLE_FULL_PATH>
  • bash -c setenforce 0
  • bash -c mount -o bind /tmp /proc/694
  • mount -o bind /tmp /proc/694
  • fuser -k 21/tcp
  • cp /etc/rc.local /etc/rc.bak
  • echo '/usr/sbin/.developer -d' >> /etc/rc.local
  • cp /etc/init.d/rcS /etc/init.d/rcS.bak
  • sh -c echo '/usr/sbin/.developer -d' >> /etc/init.d/rcS
  • rm -rf /tmp/* /var/* /var/run/* /var/tmp/*
  • echo 0 > /var/log/wtmp
  • echo 0 > /var/log/secure
  • echo -e
  • fuser -k 48101/tcp
  • rm -rf /bin/netstat
Performs operations with the file system:
Creates or modifies files:
  • <SAMPLE_FULL_PATH>
  • /run/mount/utab
  • /etc/rc.bak
Deletes files:
  • /tmp/*
  • /var/*
  • /var/run/*
  • /var/tmp/*
  • /bin/netstat
Mounts file systems:
  • /tmp
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:13372
Establishes connection:
  • [:##]:21
  • 127.0.0.1:21
Other:
Collects RAM information

Curing recommendations


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