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Konni - Remote Access Trojan

Remote Access Trojan (RAT) named Konni has been discovered by researchers and is believed to have been in operation for a number of years, evading detection by the security community whilst targeting public organisations.
Threat ID:
CC-1389
Category:
Trojan
Threat Severity:
Medium
Threat Vector:
Macro, Email spam
Published:
5 May 2017 12:00 AM
Report a cyber attack: call 0300 303 5222 or email [email protected]

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This article no longer conforms to NHS Digital's standards for cyber alerts, and may contain outdated or inaccurate information. Use of this information contained in this page is at your own risk

Summary

Remote Access Trojan (RAT) named Konni has been discovered by researchers and is believed to have been in operation for a number of years, evading detection by the security community whilst targeting public organisations.

Affected platforms

The following platforms are known to be affected:

Microsoft Windows

Microsoft Windows - all versions

Threat details

Konni is predominantly delivered by spam email with macro enabled documents. 

In the early stages of the malware, it acted as an information stealer and didn't gain remote administration capability until further into its lifecycle. The latest version is split across two binaries; conhote.dll and winnit.exe.

Konni is capable of but not limited to the following; uploading, downloading and deleting documents, taking screenshots and executing commands directly on the infected system.

When the malware connects with the Command and Control (C2) server, a wealth of information is gathered from the system and sent.

Remediation steps

Type Step
  • Monitor network and proxy logs for indicators of compromise.
  • Make sure that malware definitions are kept up-to-date.
  • Never click on links or open attachments from emails received from untrusted sources.
  • Make sure that cyber awareness training is kept up-to-date.

Last edited: 17 February 2020 11:33 am