Posts from Help me remove the infobox.

Basically, the problem lies in the topic name...
A colleague from work says that a banner ad blocker was blocking "everything" and asks to send the text 4855104 to the number 5121. I searched on the Web and Kaspersky websites – I didn't find anything similar on the first one, and on Kaspersky, it suggests entering the codes 19497341, then the code: 24967442, but they turned out to be incorrect.
What should I do? Can anyone advise?
Thank you in advance.

banner informer

What exactly does it look like? Is it an advertisement for something, or is it something else?
I've encountered this before. In the first case, it was a regular program that I found on the C drive as a hidden file and deleted. In the second case, only reinstalling the system helped. Another option is to perform a system restore.

Let him try to delete it through safe mode. Well, if there's a way to back up the system, then a backup can be made.

How can I remove it more thoroughly using safe mode?

Well, first, you need to find out how and, more importantly, when this banner pops up. If it appears immediately after Windows loads, then do the following: Start -> Run -> type "msconfig", press Run -> Startup -> then look for unnecessary programs (you can check the path, for example, there might be Punto Switcher or NOD32, SOUNDMAN, etc. ... it will be clear there...). You can use trial and error to figure it out. Sometimes, even after disabling the program that displays the banner from startup, it still runs. This is like an additional program that, despite the restrictions, restores the state and restarts the main program (I wrote it in a complicated way, but I hope the meaning is clear). In this case, the easiest way is to find the path to the main program (it is often a hidden file) and simply delete it. I don't know any other ways to remove it completely. I've shared everything I know.

These days, viruses and Trojans are getting quite sophisticated. I recently encountered one that completely blocked my Windows system; the Trojan blocked everything, and the only thing I could do was enter the code it requested.

A 100% effective solution: connect the hard drive to another PC and scan it for viruses. Based on my personal experience, it's best to do this using Kaspersky Internet Security 2010.

Alternatively, you can visit the Dr.Web website. They have a section where they provide codes that Trojans often request. You just need to search for it, but it can be time-consuming and tedious for me.

So, I recommend using the 100% effective method mentioned above. Good luck!

It turned out not to be a virus, so the search didn't yield anything, and the codes that people post don't work either, which is why I created this thread.
In general, the problem has been around for quite some time and has been successfully resolved, so this thread can be deleted.