IP Address: Malicious

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IP Address:​
Previously Malicious

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

Threat Information


Attacker, Scanner

Services Targeted



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

Associated Attack Servers

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

Basic Information

IP Address




China Telecom Shanxi




Created Date


Updated Date




First seen in Guardicore Centra


Last seen in Guardicore Centra


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

The file C:\WINDOWS\clb.dll was downloaded and loaded by c:\windows\regedit.exe

Download and Execute

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

Service Creation Service Start

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: flt1.jifr.net, ms.jifr.co.be, ms.jifr.info and ms.jifr.net

Access Suspicious Domain DNS Query

Service Ias was stopped

Service Stop

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 generated outgoing network traffic to:

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


SHA256: 90b36c3ee769f9ced72bbdd1b00f42fd896166788f3d8f3dcce2af5cc5eb598d

6672 bytes


SHA256: 03322587eca307c64622e8a59020d3399020f30eb9ebe35ffd6f0c21dc74c603

6672 bytes

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IP Address:​Previously Malicious