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Linux.Siggen.7927

Added to the Dr.Web virus database: 2024-08-13

Virus description added:

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:
  • tc2ao423p7c466l85ipw
Launches processes:
  • grep -v no cron
  • grep -v /sh18
  • crontab /tmp/.aje2
  • (crontab -l | grep -v \x22/init18\x22 | grep -v \x22/bash18\x22 | grep -v \x22/sh18\x22 | grep -v \x22no cron\x22 > /tmp/.aje2) > /dev/null 2>&1
  • crontab -l
  • grep -v /bash18
  • grep -v /init18
Performs operations with the file system:
Modifies file access rights:
  • /tmp/sh18
  • /var/tmp/bash18
  • /dev/shm/sh18
  • /run/lock/sh18
  • /run/init18
  • /var/spool/cron/crontabs/tmp.OXYCsI
Creates or modifies files:
  • /tmp/.aje2
  • /tmp/sh18
  • /var/tmp/bash18
  • /dev/shm/sh18
  • /run/lock/sh18
  • /run/init18
  • /var/spool/cron/crontabs/tmp.OXYCsI
Deletes files:
  • /tmp/.aje2
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:37830
Establishes connection:
  • 8.#.8.8:53
  • 82.###.138.82:8080
DNS ASK:
  • po##.###akfastidentity.ru
Sends data to the following servers:
  • 82.###.138.82:8080
Receives data from the following servers:
  • 82.###.138.82:8080
Other:
Collects CPU information

Curing recommendations


Linux

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