ISMInjector Trojan

ISMInjector is a trojan that is responsible for injecting a trojan into another process. This has been used to install other trojans, backdoors and information stealers. This new trojan includes anti-analysis in an attempt to avoid detection from anti-malware software.

Threat ID:: CC-1709
Category:: Trojan
Threat Severity:: Medium
Threat Vector:: Spear phishing
Published:: 19 October 2017 12:00 AM

Report a cyber attack: call 0300 303 5222 or email [email protected]

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Summary

Affected platforms

The following platforms are known to be affected:

Microsoft Office

Microsoft Office 2007 SP3
Microsoft Office 2010 SP2
Microsoft Office 2013 SP1
Microsoft Office 2016
Microsoft Windows Vista SP2
Windows Server 2008 SP2
Windows 7 SP1
Windows 8.1

Windows 7

Threat details

The current method of introducing this trojan to a user's system is a highly targeted spear phishing attack. The attackers send malicious .zip files that attempt to run in Microsoft Word. The macro in the Word documents will run a PowerShell command that will begin the process of installing the ISMInjector trojan via the CVE-2017-0199 vulnerability.

Remediation advice

To prevent and detect a trojan infection, ensure that:

Remediation steps

Type	Step
	A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails. All operating systems, antivirus and other security products are kept up to date. All day to day computer activities such as email and internet are performed using non-administrative accounts. Strong password policies are in place and password reuse is discouraged. Network, proxy and firewall logs should be monitored for suspicious activity. User accounts accessed from infected machines should be reset on a clean computer

Type

Step

A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails.
All operating systems, antivirus and other security products are kept up to date.
All day to day computer activities such as email and internet are performed using non-administrative accounts.
Strong password policies are in place and password reuse is discouraged.
Network, proxy and firewall logs should be monitored for suspicious activity.
User accounts accessed from infected machines should be reset on a clean computer

CVE Vulnerabilities

CVE-2017-0199

Last edited: 7 September 2021 2:05 pm