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Linux.MulDrop.48

Added to the Dr.Web virus database: 2020-02-19

Virus description added:

Technical Information

Malicious functions:
Launches processes:
  • /bin/bash <SAMPLE_FULL_PATH> -c exec '<SAMPLE_FULL_PATH>' \"$@\" <SAMPLE_FULL_PATH>
  • <SAMPLE_FULL_PATH>
  • /bin/bash <SAMPLE_FULL_PATH> -c
  • mv /bin/pidof /bin/prednizons
  • id -u
  • rm -rf /usr/lib/.dsht
  • rm -rf /usr/lib/scroll
  • clear
  • useradd -N -m -r -p 1234567890 shot
  • nscd -i passwd
  • nscd -i group
  • passwd shot shot shot
  • mkdir /home/shot/ads
  • sleep 3
  • grep ^NAME
  • grep CentOS
  • cat /etc/os-release
  • grep Ubuntu
  • grep Debian
  • apt-get update -y
  • /usr/bin/dpkg --print-foreign-architectures
  • /usr/lib/apt/methods/http
  • /usr/lib/apt/methods/gpgv
  • /usr/bin/gpgv #3 ##/etc/apt/trusted.gpg.d/debian-archive-jessie-security-automatic.gpg ##/etc/apt/trusted.gpg.d/debian-archive-squeeze-automatic.gpg ##/etc/apt/trusted.gpg.d/debian-archive-jessie-automatic.gpg ##/etc/apt/trusted.gpg.d/debian-archive-squeeze-stable.gpg ##/etc/apt/trusted.gpg.d/debian-archive-wheezy-stable.gpg ##/etc/apt/trusted.gpg.d/debian-archive-jessie-stable.gpg ##/etc/apt/trusted.gpg.d/debian-archive-wheezy-automatic.gpg /tmp/apt.sig.4ysy9n /tmp/apt.data.rDLcV0
  • /usr/lib/apt/methods/gzip
  • /usr/lib/apt/methods/bzip2
Kills the following processes:
  • /usr/lib/apt/methods/http
  • /usr/lib/apt/methods/gpgv
  • /usr/lib/apt/methods/gzip
  • /usr/lib/apt/methods/bzip2
Performs operations with the file system:
Modifies file access rights:
  • /home/shot
  • /home/shot/.bashrc
  • /home/shot/.bash_logout
  • /home/shot/.profile
  • /etc/passwd+
  • /etc/shadow+
  • /etc/subuid+
  • /etc/subgid+
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie-updates_InRelease
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources.gz.decomp.tpFKgV
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages.gz.decomp.4sPqWE
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en.bz2.decomp.rphXBF
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en
Creates folders:
  • /home/shot
  • /home/shot/ads
Creates symlinks:
  • /etc/passwd.lock
  • /etc/group.lock
  • /etc/gshadow.lock
  • /etc/subuid.lock
  • /etc/subgid.lock
  • /etc/shadow.lock
Creates or modifies files:
  • /bin/pidof
  • /etc/.pwd.lock
  • /etc/passwd.719
  • /etc/group.719
  • /etc/gshadow.719
  • /etc/subuid.719
  • /etc/subgid.719
  • /etc/shadow.719
  • /var/log/faillog
  • /var/log/lastlog
  • /home/shot/.bashrc
  • /home/shot/.bash_logout
  • /home/shot/.profile
  • /etc/passwd-
  • /etc/passwd+
  • /etc/shadow-
  • /etc/shadow+
  • /etc/subuid-
  • /etc/subuid+
  • /etc/subgid-
  • /etc/subgid+
  • /var/lib/apt/lists/lock
  • /var/lib/apt/lists/security.debian.org_dists_jessie_updates_InRelease
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie-updates_InRelease
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_InRelease
  • /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_Release.gpg
  • /var/lib/apt/lists/partial/security.debian.org_dists_jessie_updates_InRelease
  • /tmp/apt.sig.4ysy9n
  • /tmp/apt.data.rDLcV0
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie_Release.gpg
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie_Release
  • /tmp/fileutl.message.Xo9big
  • /tmp/fileutl.message.Xo9big (deleted)
  • /tmp/apt.sig.qcrZsM
  • /tmp/apt.data.5JBBDs
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources.gz
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources.gz.decomp.tpFKgV
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages.gz
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources.gz.decomp
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages.gz.decomp.4sPqWE
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages.gz.decomp
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en.bz2
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en.bz2.decomp.rphXBF
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en.bz2.decomp
Deletes files:
  • /usr/lib/.dsht
  • /usr/lib/scroll
  • /etc/passwd.719
  • /etc/group.719
  • /etc/gshadow.719
  • /etc/subuid.719
  • /etc/subgid.719
  • /etc/shadow.719
  • /etc/shadow.lock
  • /etc/passwd.lock
  • /etc/group.lock
  • /etc/gshadow.lock
  • /etc/subuid.lock
  • /etc/subgid.lock
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie_Release.gpg
  • /tmp/apt.sig.4ysy9n
  • /tmp/apt.data.rDLcV0
  • /tmp/fileutl.message.Xo9big
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_source_Sources
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_binary-amd64_Packages
  • /var/lib/apt/lists/partial/ftp.ru.debian.org_debian_dists_jessie-updates_main_i18n_Translation-en
Network activity:
Establishes connection:
  • <LOCAL_DNS_SERVER>
  • 14#.#0.4.14:80
  • 12#.##.240.73:80
  • 20#.##.202.197:80
  • 12#.#1.0.63:80
  • 21#.##6.149.233:80
  • 12#.##1.240.215:80
  • [2########:ffff:bb8::801f:3f]:80
  • [2##########f:8009:e61f:13ff:fe63:8e88]:80
  • [2######8:1f10:3::73]:80
  • [2########:101:3c0b::1deb:215]:80
  • [2#####f8:1:c::14]:80
  • [2#########:1:216:35ff:fe7f:6ceb]:80
  • [2#######8:dc41:100::233]:80
  • [2#####e42:14::204]:80
HTTP GET requests:
  • se######.#####n.org/dists/jessie/updates/InRelease
  • ft#.##.######.org/debian/dists/jessie/InRelease
  • ft#.##.######.#rg/debian/dists/jessie-updates/InRelease
  • se##########.##bian.org/dists/jessie/updates/InRelease
  • ft#.##.######.org/debian/dists/jessie/Release.gpg
  • ft#.##.######.org/debian/dists/jessie/Release
  • ft#.##.######.#####ebian/dists/jessie-updates/main/source/Sources.gz
  • ft#.##.######.######bian/dists/jessie-updates/main/binary-amd64/Packages.gz
  • ft#.##.######.######bian/dists/jessie-updates/main/i18n/Translation-en.bz2
DNS ASK:
  • ft#.##.debian.org
  • se####ty.debian.org
  • se#####y-cdn.debian.org
Other:
Collects RAM information

Curing recommendations


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