IP Address: 220.163.121.202Previously Malicious

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IP Address:
220.163.121.202​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

RDP

Tags

DNS Query Service Start Service Creation Post Reboot Rename System Shutdown Successful RDP Login Access Suspicious Domain Malicious File Execute from Share Successful Login Download and Execute Service Stop

Connect Back Servers

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

Basic Information

IP Address

220.163.121.202

Domain

-

ISP

China Telecom

Country

China

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2018-01-17

Last seen in Guardicore Centra

2019-01-06

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

\\TSCLIENT\A\a.dll was identified as malicious by YARA according to rules: Packer, Maldoc Somerules, Peid and Packer Compiler Signatures

Malicious File

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

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

Service Creation

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

Download and Execute

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

DNS Query Access Suspicious Domain

C:\WINDOWS\Temp\ntshrui.dll was identified as malicious by YARA according to rules: Packer, Maldoc Somerules, Peid and Packer Compiler Signatures

Malicious File

Service Ias was stopped

Service Stop

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: 74.125.71.104:80

c:\windows\system32\rundll32.exe attempted shutdown of type Shut down all processes running in the logon session of the process with reason: Unspecified

System Shutdown

Connection was closed due to timeout

Associated Files

C:\WINDOWS\Temp\ntshrui.dll

SHA256: 8de3cbf0003f1e11b3a5f7627f34b65c7597425ac2bc85ab09dc8324f098a53d

6,672 bytes

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IP Address: 220.163.121.202​Previously Malicious