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Linux.Siggen.3730
Added to the Dr.Web virus database:
2021-03-06
Virus description added:
2021-03-06
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
Creates or modifies the following symlinks:
/etc/rc0.d/S99sellinux
/etc/rc1.d/S99sellinux
/etc/rc2.d/S99sellinux
/etc/rc3.d/S99sellinux
/etc/rc4.d/S99sellinux
/etc/rc5.d/S99sellinux
/etc/rc6.d/S99sellinux
Malicious functions:
Launches itself as a daemon
Launches processes:
sh -c mv <SAMPLE_FULL_PATH> /usr/bin/.sshd > /dev/null
mv <SAMPLE_FULL_PATH> /usr/bin/.sshd
sh -c echo \"#!/bin/bash\" > /etc/init.d/sellinux
sh -c echo \"/usr/bin/.sshd\" >> /etc/init.d/sellinux
chmod 755 /etc/init.d/sellinux
ln -sf /etc/init.d/sellinux /etc/rc0.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc1.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc2.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc3.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc4.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc5.d/S99sellinux
ln -sf /etc/init.d/sellinux /etc/rc6.d/S99sellinux
/usr/bin/.sshd
Performs operations with the file system:
Modifies file access rights:
Creates or modifies files:
Curing recommendations
Linux
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