IP Address: 103.17.119.170Malicious

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IP Address:
103.17.119.170​
Malicious

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

Threat Information

Role

Attacker, Scanner

Services Targeted

RDP

Tags

RDP Execute from Share Known Malware Service Start Post Reboot Rename DNS Query System File Modification Access Suspicious Domain Successful RDP Login Service Deletion Service Creation Access Share Morto Port 3389 Scan Service Configuration Service Stop

Associated Attack Servers

ms.jifr.info ms.jifr.co.be flt1.jifr.net ms.jifr.co.cc dos1.jifr.net ss.jifr.net ms.jifr.net

Basic Information

IP Address

103.17.119.170

Domain

-

ISP

Shenzhen Katherine Heng Technology Information Co.

Country

Hong Kong

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2020-01-14

Last seen in Guardicore Centra

2020-05-11

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 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\system32\services.exe installed and started c:\windows\temp\ntshrui.dll as a service named Ias under service group netsvcs

Service Start Service Creation

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

Access Suspicious Domain DNS Query

Service Ias was stopped

Service Stop

Process netsvcs Service Group generated outgoing network traffic to: 192.168.8.10:3389, 192.168.8.11:3389, 192.168.8.12:3389, 192.168.8.13:3389, 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, 192.168.8.8:3389, 192.168.8.9:3389 and 74.125.71.104:80

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

Service Creation

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

System File Modification

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 scanned port 3389 on 13 IP Addresses

Port 3389 Scan

Connection was closed due to user inactivity

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IP Address: 103.17.119.170​Malicious