IP Address: 183.16.211.20Previously Malicious

Weekly Summary

Browse or download a weekly review of our cyber threat intelligence data and gain more insight to help protect your network

Top Threats

Cyber Threat Intelligence

Discover Malicious IPs and Domains with Guardicore Cyber Threat Feed

IP Address:
183.16.211.20​
Previously Malicious

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

Threat Information

Role

Attacker

Services Targeted

RDP

Tags

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

Connect Back Servers

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

Basic Information

IP Address

183.16.211.20

Domain

-

ISP

China Telecom Guangdong

Country

China

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2017-06-30

Last seen in Guardicore Centra

2017-06-30

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

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

Access Suspicious Domain DNS Query

Service Ias was stopped

Service Stop

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

Associated Files

C:\WINDOWS\clb.dll

SHA256: da386259e85a318de1d2c46c4c1947b2618f4a0b84d32d3056cc16d80c815e2b

6672 bytes

C:\WINDOWS\Temp\ntshrui.dll

SHA256: 32d67366942e947d9196d9cf5574e4f9d7bccf0bd2fd5c9c4453626f7d34d3eb

6672 bytes

Oops! - Do you see your IP here? Contact us at labs@guardicore.com to remove it from the Threat Intelligence data.

IP Address: 183.16.211.20​Previously Malicious