IP Address: 181.49.42.94Previously Malicious

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IP Address:
181.49.42.94​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

-

Tags

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

Connect Back Servers

-

Basic Information

IP Address

181.49.42.94

Domain

-

ISP

Telmex Colombia S.A.

Country

Colombia

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2017-02-21

Last seen in Guardicore Centra

2017-02-23

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 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 netsvcs Service Group

Download and Execute

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

DNS Query

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

Access Suspicious Domain

Service Ias was stopped

Service Stop

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

Post Reboot Rename

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

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IP Address: 181.49.42.94​Previously Malicious