IP Address: 185.85.209.88Previously Malicious

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IP Address:
185.85.209.88​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

RDP

Tags

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

Connect Back Servers

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

Basic Information

IP Address

185.85.209.88

Domain

-

ISP

Denit Internet Services

Country

Netherlands

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2017-05-21

Last seen in Guardicore Centra

2017-07-09

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

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 netsvcs Service Group

Download and Execute

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

Service Creation

C:\WINDOWS\clb.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

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.co.be, dos1.jifr.net, ss.jifr.net, ms.jifr.info and flt1.jifr.net

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

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

Malicious File

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

Post Reboot Rename

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

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IP Address: 185.85.209.88​Previously Malicious