Saefko Remote Access Trojan

First observed in 2019, Saefko is a .NET remote access trojan (RAT), targeting Windows and Android devices. It is available for purchase on several dark web sites and hacking forums.

Threat ID:: CC-3174
Category:: Trojan
Threat Severity:: Medium
Threat Vector:
Published:: 12 August 2019 12:00 AM

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

Summary

First observed in 2019, Saefko is a .NET remote access trojan (RAT), targeting Windows and Android devices. It is available for purchase on several dark web sites and hacking forums.

Affected platforms

The following platforms are known to be affected:

Microsoft Windows

Microsoft Windows - All versions
Google Android - All versions

Android

Threat details

At the time of publication, it is unclear how Saefko is delivered. However, there are unconfirmed reports suggesting it may be delivered via compromised USB devices.

Once infected, Saefko alters registry entries to ensure persistence across reboots, executing every time a user logs in. Saefko then fetches the user's Chrome browser history looking for specific types of activities, such as those involving banking, business, social media, gaming, cryptocurrency and shopping. It sends the collected data to its command and control server and requests further instruction. Saefko has the following additional capabilities:

Extract system information and log data.
Takes screenshots.
Record system audio and video.
Log keystrokes.
Download, upload, and execute files.
Copy itself to any removable USB devices.

Remediation steps

Type	Step
	To prevent and detect a trojan infection, ensure that: 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, anti-virus and other security products are kept up-to-date. Regular anti-virus and security scans are performed on your organisation’s estate. All day-to-day computer activities such as email and internet are performed using non-administrative accounts. Strong password policies are in place. Network, proxy and firewall logs should be monitored for suspicious activity. User accounts accessed from affected devices should be reset on a clean computer. Your organisation adopts a holistic all-round approach to Cyber Security as advocated by the 10 Steps to Cyber Security.

Type

Step

To prevent and detect a trojan infection, ensure that:

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, anti-virus and other security products are kept up-to-date.
Regular anti-virus and security scans are performed on your organisation’s estate.
All day-to-day computer activities such as email and internet are performed using non-administrative accounts.
Strong password policies are in place.
Network, proxy and firewall logs should be monitored for suspicious activity.
User accounts accessed from affected devices should be reset on a clean computer.
Your organisation adopts a holistic all-round approach to Cyber Security as advocated by the 10 Steps to Cyber Security.

Last edited: 14 February 2020 2:59 pm