Cyber Threat Intelligence

Discover malicious IPs and domains with Akamai Guardicore Segmentation

IP Address: 91.242.20.206Previously Malicious

IP Address: 91.242.20.206Previously Malicious

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

Threat Information

Role

Attacker, Scanner

Services Targeted

RDP

Tags

Execute from Share Morto Access Share Post Reboot Rename System File Modification Service Creation Service Stop Outgoing Connection DNS Query RDP Access Suspicious Domain Service Configuration Service Start Successful RDP Login Service Deletion Download and Execute Known Malware

Associated Attack Servers

192.168.8.1 192.168.8.2 192.168.8.3 192.168.8.4 192.168.8.5 192.168.8.6 192.168.8.7

Basic Information

IP Address

91.242.20.206

Domain

-

ISP

CNC.AZ MMC

Country

Azerbaijan

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Akamai Guardicore Segmentation

2020-10-12

Last seen in Akamai Guardicore Segmentation

2020-10-12

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 RDP with the following credentials: administrator / **** - Authentication policy: White List

Successful RDP Login

a.dll was loaded from the remote share \\tsclient\a by c:\windows\system32\rundll32.exe

Execute from Share

c:\windows\regedit.exe installed and started c:\windows\temp\ntshrui.dll as a service named Ias under service group netsvcs

Service Start Service Creation

The file C:\WINDOWS\Temp\ntshrui.dll was downloaded and loaded by c:\windows\system32\svchost.exe

Download and Execute

Service Ias was stopped

Service Stop

System file c:\windows\clb.dllbak was modified 25 times

System File Modification

Process netsvcs Service Group attempted to access suspicious domains: dos1.jifr.net, flt1.jifr.net, ms.jifr.co.be, ms.jifr.info, ms.jifr.net and ss.jifr.net

DNS Query Access Suspicious Domain Outgoing Connection

c:\windows\regedit.exe installed c:\windows\system32\sens32.dll as a service named SENS under service group netsvcs

Service Creation

c:\windows\offline web pages\cache.txt was renamed to c:\windows\system32\sens32.dll by c:\windows\system32\svchost.exe ( pending reboot )

Post Reboot Rename

Process netsvcs Service Group attempted to access domains: ms.jifr.co.cc

DNS Query

Process netsvcs Service Group generated outgoing network traffic to: 192.168.8.1:3389, 192.168.8.2:3389, 192.168.8.3:3389, 192.168.8.4:3389, 192.168.8.5:3389, 192.168.8.6:3389, 192.168.8.7:3389 and 74.125.71.104:80

Outgoing Connection

Connection was closed due to user inactivity