Trusted by
![PC Mag Readers Choice](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/07/pcmag-readers_choice_2023.png)
![AV Test Certified Advanced for Windows](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/07/avtest_certified_homeuser_2023-02_tp.png)
![AV Lab Rated Excellent March 2023](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/08/avlab-2023-march-excellent.png)
![wirecutter icon](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/08/wirecutter-circle-color.webp)
![AV Comparatives Advanced Protection in Performance Test](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/07/av-comparitives-adv-plus-10-22.png)
![G2 Leader Winter 2023](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/07/g2_leader_winter_2023.png)
Trojan Horse Virus Symptoms
Lots of desktop pop-ups
Frequent pop-up ads and messages advertise products or say your device is infected.
Slow computer
Trojans and the malicious software they download take a lot of computer resources, which makes your device run slowly.
Applications won’t run
Programs won’t run from the Start menu or Desktop—or programs execute that you didn’t start.
Annoying Internet pop-ups
You get multiple pop-ups the moment you start browsing the Internet.
Your computer has a mind of its own
Your device turns off, launches applications you didn’t start, or prints documents you never sent to the printer.
Check your devices for Trojans now
How to remove Trojans
![](https://www.malwarebytes.com/wp-content/uploads/sites/2/2023/08/protect-tablet.webp?w=554)
Proactively protect your device from future threats with Malwarebytes Premium.
Automatically scans and protects against Trojans.
Don’t take our word for it
“We use Malwarebytes on all of our company computers. Our experience is that Malwarebytes is effective and trouble free.”
“Malwarebytes provides an extra, invaluable layer protection against malicious data, and that makes me and our systems feel safer!”
“Eliminating hundreds of potential malware and trackers every week for our entire organization.”
Trojan horse virus FAQ
What is a Trojan?
Do you need anti-Trojan software?
Are Trojans considered viruses?
How do Trojans spread?
Get started
Get Malwarebytes Premium for proactive protection against all kinds of malware.