IP Address: 176.31.90.139Previously Malicious

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IP Address:
176.31.90.139​
Previously Malicious

This IP address attempted an attack on a machine protected by Guardicore Centra

Threat Information

Role

Attacker, Scanner

Services Targeted

SSH

Tags

DNS Query Download and Execute Download File Download Operation Malicious File Successful SSH Login Download and Allow Execution SSH Log Tampering 23 Shell Commands Human Superuser Operation SFTP Access Suspicious Domain Networking Operation

Associated Attack Servers

cset.pw dl.mrreacher.com security.ubuntu.com www.speedtest.net archive.ubuntu.com

Basic Information

IP Address

176.31.90.139

Domain

-

ISP

OVH SAS

Country

France

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2018-02-10

Last seen in Guardicore Centra

2018-11-04

What is Guardicore Centra
Guardicore Centra is a data center and cloud security solution that protects the organization's core assets, using flexible, quickly deployed and easy to understand micro-segmentation controls. Centra generates in-context security incidents, with details on attacker tools and techniques, that help IR teams prioritize incident investigation and reduce dwell time. Learn More

Attack Flow

A user logged in using SSH with the following credentials: root / ******** - Authentication policy: White List

Successful SSH Login

Process /usr/bin/wget attempted to access suspicious domains: dl.mrreacher.com 2 times

Access Suspicious Domain DNS Query

Process /usr/bin/wget attempted to access suspicious domains: cset.pw 3 times

Access Suspicious Domain DNS Query

A user logged in using SSH with the following credentials: root / ******** - Authentication policy: Correct Password 3 times

Successful SSH Login

/root/v.py was downloaded

Download File

Process /usr/bin/python2.7 attempted to access domains: www.speedtest.net

DNS Query

/root/groot/1 was downloaded

Download File

/root/groot/2 was downloaded

Download File

/root/groot/3 was downloaded

Download File

/root/groot/anti-blackdor.anti was downloaded

Download File

/root/groot/bios.txt was downloaded

Download File

The file /root/groot/class.filepart was downloaded and executed 4 times

Download and Execute

/root/groot/class.filepart was downloaded

Download File

/root/groot/clean was downloaded

Download File

/root/groot/cleanlist was downloaded

Download File

/root/groot/eof.txt was downloaded

Download File

/root/groot/dup.txt was downloaded

Download File

/root/groot/go was downloaded

Download File

/root/groot/mfu.txt was downloaded

Download File

/root/groot/motd was downloaded

Download File

/root/groot/pass_file was downloaded

Download File

/root/groot/random was downloaded

Download File

/root/groot/update.filepart was downloaded

Download File

The file /root/groot/1 was downloaded and granted execution privileges

Download and Allow Execution

The file /root/groot/2 was downloaded and granted execution privileges

The file /root/groot/3 was downloaded and granted execution privileges

The file /root/groot/anti-blackdor.anti was downloaded and granted execution privileges

The file /root/groot/bios.txt was downloaded and granted execution privileges

The file /root/groot/class.filepart was downloaded and granted execution privileges

The file /root/groot/clean was downloaded and granted execution privileges

The file /root/groot/cleanlist was downloaded and granted execution privileges

The file /root/groot/dup.txt was downloaded and granted execution privileges

The file /root/groot/eof.txt was downloaded and granted execution privileges

The file /root/groot/go was downloaded and granted execution privileges

The file /root/groot/mfu.txt was downloaded and granted execution privileges

The file /root/groot/motd was downloaded and granted execution privileges

The file /root/groot/pass_file was downloaded and granted execution privileges

The file /root/groot/random was downloaded and granted execution privileges

The file /root/groot/screen.filepart was downloaded and granted execution privileges

The file /root/groot/update.filepart was downloaded and granted execution privileges

The file /root/groot/vuln.txt was downloaded and granted execution privileges

/root/groot/vuln.txt was downloaded

Download File

/root/groot/vuln1.txt was downloaded

Download File

/root/groot/screen.filepart was downloaded

Download File

Log File Tampering detected from /bin/bash on the following logs: /var/log/faillog, /var/log/upstart/setvtrgb.log, /var/log/btmp, /var/log/fsck/checkroot, /var/log/dmesg.0, /var/log/upstart/networking.log, /var/log/alternatives.log, /var/log/wtmp, /var/log/bootstrap.log, /var/log/dmesg, /var/log/upstart/console-font.log, /var/log/dpkg.log, /var/log/apt/history.log, /var/log/upstart/console-setup.log, /var/log/upstart/procps-static-network-up.log, /var/log/lastlog, /var/log/fsck/checkfs, /var/log/upstart/hwclock.log, /var/log/upstart/ureadahead.log, /var/log/apt/term.log, /var/log/upstart/plymouth-stop.log and /var/log/upstart/procps-virtual-filesystems.log

Log Tampering

Connection was closed due to timeout

/root/groot/screen.filepart was identified as malicious by YARA according to rules: Maldoc Somerules and Toolkit Thor Hacktools

Malicious File

/root/groot/class.filepart was identified as malicious by YARA according to rules: Maldoc Somerules and Suspicious Strings

Malicious File

/root/groot/update.filepart was identified as malicious by YARA according to rules: Malw Miscelanea Linux, Maldoc Somerules and Crypto Signatures

Malicious File

Associated Files

/var/tmp/gosh/1

SHA256: 246fcc88606c73771e9ccfed22be1ee97636f65156b1076db2e506e16e732db3

189 bytes

/var/tmp/v.py

SHA256: a529e9e110626962b11ff5f47e69d952d070a1c64aa41810c4e5e42532390f12

25480 bytes

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IP Address: 176.31.90.139​Previously Malicious