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The Daily Insight

Trojan:PDF/Phish!MSR — PDF/Phish Trojan Removal Guide

Author

Daniel Foster

Updated on February 27, 2026

Any malware exists with the only target – gain money on you1. And the developers of these things are not thinking about morality – they use all possible ways. Grabbing your private data, getting the comission for the promotions you watch for them, utilizing your system to mine cryptocurrencies – that is not the full list of what they do. Do you want to be a riding equine? That is a rhetorical question.

What does the notification with Trojan:PDF/Phish!MSR detection mean?

The Trojan:PDF/Phish!MSR detection you can see in the lower right corner is demonstrated to you by Microsoft Defender. That anti-malware program is good at scanning, however, prone to be generally unreliable. It is defenseless to malware attacks, it has a glitchy user interface and problematic malware removal features. Thus, the pop-up which says about the PDF/Phish is rather just an alert that Defender has identified it. To remove it, you will likely need to use a separate anti-malware program.

Trojan:PDF/Phish!MSR found

Microsoft Defender: “Trojan:PDF/Phish!MSR”

The exact Trojan:PDF/Phish!MSR infection is a very undesirable thing. It sits into your computer under the guise of something benevolent, or as a part of the tool you have got on a forum. Therefore, it makes everything to make your system weaker. At the end of this “party”, it injects other viruses – ones which are choosen by crooks who control this virus. Hence, it is likely impossible to predict the effects from PDF/Phish actions. And the unpredictability is one of the baddest things when it comes to malware. That’s why it is rather not to choose at all, and don’t give it even a single chance to complete its task.

Threat Summary:

NamePDF/Phish Trojan
DetectionTrojan:PDF/Phish!MSR
DetailsThis trojan is a .pdf file with a malformed hyperlink to phishing websites or other malicious sites. It usually arrives as an attachment to spammed email messages.
Fix Tool GridinSoft Anti-MalwareSee If Your System Has Been Affected by PDF/Phish Trojan

Is Trojan:PDF/Phish!MSR dangerous?

As I have specified , non-harmful malware does not exist. And Trojan:PDF/Phish!MSR is not an exception. This malware changes the system setups, modifies the Group Policies and Windows registry. All of these elements are vital for correct system functioning, even when we are not talking about Windows safety. Therefore, the malware which PDF/Phish contains, or which it will inject after some time, will try to get maximum profit from you. Cyber burglars can steal your personal information, and then push it on the Darknet. Using adware and browser hijacker functionality, built in Trojan:PDF/Phish!MSR malware, they can make money by showing you the advertisements. Each view gives them a penny, but 100 views per day = $1. 1000 victims who watch 100 banners per day – $1000. Easy math, but sad conclusions. It is a bad choice to be a donkey for crooks.

How did I get this virus?

It is difficult to line the sources of malware on your computer. Nowadays, things are mixed up, and spreading ways chosen by adware 5 years ago can be utilized by spyware nowadays. However, if we abstract from the exact distribution way and will think about why it has success, the explanation will be quite uncomplicated – low level of cybersecurity understanding. People press on ads on strange websites, open the pop-ups they receive in their browsers, call the “Microsoft tech support” assuming that the strange banner that states about malware is true. It is necessary to recognize what is legit – to stay away from misconceptions when attempting to identify a virus.

Microsoft tech support scam

Microsoft tech support scam page

Nowadays, there are two of the most extensive tactics of malware distribution – bait e-mails and injection into a hacked program. While the first one is not so easy to avoid – you must know a lot to recognize a fake – the second one is very easy to solve: just do not utilize cracked applications. Torrent-trackers and various other providers of “free” applications (which are, actually, paid, but with a disabled license checking) are just a giveaway place of malware. And Trojan:PDF/Phish!MSR is just amongst them.

How to remove the Trojan:PDF/Phish!MSR from my PC?

Trojan:PDF/Phish!MSR malware is extremely difficult to eliminate by hand. It places its documents in multiple places throughout the disk, and can recover itself from one of the elements. In addition, various alterations in the registry, networking setups and also Group Policies are quite hard to locate and revert to the original. It is far better to make use of a specific app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus elimination reasons.

Why GridinSoft Anti-Malware? It is really lightweight and has its detection databases updated practically every hour. In addition, it does not have such bugs and weakness as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for getting rid of malware of any type.

Download GridinSoft Anti-Malware

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process
  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results
  • When the scan is over, you may choose the action for each detected virus. For all files of PDF/Phish the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning

References

  1. Read about malware types on GridinSoft Threat encyclopedia.