IP Address: 221.178.126.243Previously Malicious

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IP Address:
221.178.126.243​
Previously Malicious

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

Threat Information

Role

Attacker, Scanner

Services Targeted

MSSQL

Tags

File Operation By CMD MSSQL User Added to Group Service Configuration Access Suspicious Domain User Created Service Creation Outgoing Connection Service Start DNS Query Execute MsSql Shell Command Download and Execute Post Reboot Rename Persistency - Logon User Password Changed CMD Successful MSSQL Login

Associated Attack Servers

ocsp2.globalsign.com ocsp.globalsign.com 113.240.239.69 map.baidu.com s.cvc.world secureserver.net www.baidu.com c.vivi.casa m.gmcc.live ctldl.windowsupdate.com o.mwwwm.icu 2019.ip138.com m.ieo.buzz

113.240.239.69 166.62.30.153

Basic Information

IP Address

221.178.126.243

Domain

-

ISP

China Mobile Guangdong

Country

China

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2019-05-19

Last seen in Guardicore Centra

2019-05-23

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 MSSQL with the following credentials: user / ******* - Authentication policy: White List

Successful MSSQL Login

MSSQL executed 4 shell commands

Execute MsSql Shell Command

A user logged in using MSSQL with the following credentials: user / ******* - Authentication policy: Previously Approved User 4 times

Successful MSSQL Login

Password for user Guest was changed to: *********

User Password Changed

User Guest was added to groups: Administrators

User Added to Group

User IUER_SERVER was created with the password ********* and added to groups: Administrators 3 times

User Created User Added to Group

The file C:\ProgramData\SQLAGENTSCK.exe was downloaded and executed

Download and Execute

c:\users\admini~1\appdata\local\temp\sqlagentsak.exe installed a Persistency - Logon backdoor by modifying Windows Registry

Persistency - Logon

Process c:\users\admini~1\appdata\local\temp\sqlagentsak.exe attempted to access suspicious domains: 113.240.239.69, c.vivi.casa, m.ieo.buzz and s.cvc.world

Access Suspicious Domain Outgoing Connection DNS Query

Process c:\users\admini~1\appdata\local\temp\sqlagentsak.exe generated outgoing network traffic to: 113.240.239.69:9631

Outgoing Connection

Process c:\users\admini~1\appdata\local\temp\sqlagentsak.exe attempted to access domains: 2019.ip138.com, ctldl.windowsupdate.com, map.baidu.com, ocsp.globalsign.com, ocsp2.globalsign.com and www.baidu.com

DNS Query

The file C:\Program Files (x86)\Microsoft SQL Server\SQLIOSIMSD.exe was downloaded and executed 4 times

Download and Execute

c:\windows\system32\services.exe installed and started c:\program as a service named Microsoft SQL Server under service group None

Service Start Service Creation

Process c:\users\admini~1\appdata\local\temp\sqlagentc.exe attempted to access suspicious domains: o.mwwwm.icu

Access Suspicious Domain DNS Query

The file C:\Program Files (x86)\Microsoft SQL Server\sqlbrowsersa.exe was downloaded and executed

Download and Execute

c:\windows\system32\services.exe installed and started c:\program as a service named Microsoft SQL service under service group None

Service Start Service Creation

Process c:\program files (x86)\microsoft sql server\sqliosimsd.exe attempted to access suspicious domains: m.gmcc.live

Access Suspicious Domain Outgoing Connection DNS Query

Process c:\program files (x86)\microsoft sql server\sqliosimsd.exe generated outgoing network traffic to: 113.240.239.69:22289

Outgoing Connection

Process c:\program files (x86)\microsoft sql server\sqlbrowsersa.exe attempted to access suspicious domains: m.gmcc.live

Access Suspicious Domain Outgoing Connection DNS Query

c:\windows\syswow64\133484.bak was deleted by c:\users\admini~1\appdata\local\temp\sqlbrowsersn.exe ( pending reboot )

Post Reboot Rename

Process c:\program files (x86)\microsoft sql server\sqlbrowsersa.exe generated outgoing network traffic to: 113.240.239.69:21181

Outgoing Connection

Connection was closed due to timeout

Associated Files

C:\ProgramData\SQLAGENTSCK.exe

SHA256: d6f97797d5ec307ddc7608614626942074e1460d83daea105984e3a1bb02dd44

89088 bytes

C:\Program Files (x86)\Microsoft SQL Server\SQLIOSIMSD.exe

SHA256: c556ae35fa61266068d393eefafd11c80a2a5ea32fda0eb4503b476f7ec0eef4

95801344 bytes

C:\Program Files (x86)\Microsoft SQL Server\sqlbrowsersa.exe

SHA256: 2e44dd9e9a0477f6e891f799529a24c31f8033efd2c720ffaeda49a6f0a88e8f

81916416 bytes

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IP Address: 221.178.126.243​Previously Malicious