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Linux.Siggen.1299
Added to the Dr.Web virus database:
2018-12-18
Virus description added:
2018-12-18
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
/var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
Launches processes:
sh -c crontab -l | grep <SAMPLE_FULL_PATH> || (crontab -l ; echo \"* * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
sh -c cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
crontab -l
grep <SAMPLE_FULL_PATH>
cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
sh -c crontab -l | grep /dev/shm/<SAMPLE> || (crontab -l ; echo \"* * * * * /dev/shm/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
sh -c cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
grep /dev/shm/<SAMPLE>
cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
crontab -
sh -c crontab -l | grep /var/tmp/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/tmp/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
sh -c cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
grep /var/tmp/<SAMPLE>
cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
sh -c crontab -l | grep /var/lock/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/lock/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
sh -c cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
grep /var/lock/<SAMPLE>
cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
sh -c crontab -l | grep /var/run/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/run/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
grep /var/run/<SAMPLE>
Performs operations with the file system:
Modifies file access rights:
/var/spool/cron/crontabs/tmp.sSgU61
/var/spool/cron/crontabs/tmp.vVe15q
/var/spool/cron/crontabs/tmp.8MpKFi
Creates or modifies files:
/dev/shm/<SAMPLE>
/var/tmp/<SAMPLE>
/usr/bin/crontab
/var/spool/cron/crontabs/tmp.vVe15q
/var/spool/cron/crontabs/tmp.sSgU61
/var/lock/<SAMPLE>
/run/lock/<SAMPLE>
/var/spool/cron/crontabs/tmp.8MpKFi
/var/run/<SAMPLE>
/run/<SAMPLE>
Network activity:
Awaits incoming connections on ports:
Establishes connection:
Connects to the following servers over the IRC protocol:
Server: 51.##.124.148; Command: NICK ARM|1|954795|box-armhf
\n
Server: 51.##.124.148; Command: USER mb localhost 0 :2018
\n
Server: 51.##.124.148; Command: PONG :3B64B83
\n
DNS ASK:
Curing recommendations
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