Home Malware Programs Adware ’855-791-2391′ Pop-Up

’855-791-2391′ Pop-Up

Posted: June 1, 2015

Threat Metric

Threat Level: 8/10
Infected PCs: 94
First Seen: June 1, 2015
Last Seen: July 12, 2020
OS(es) Affected: Windows

The '855-791-2391' pop-up is a phishing attack meant to entice their victims into contact with con artists posing as PC technical support technicians. While the most common format of the '855-791-2391' pop-up claims to have identified a potential breach of your personal, financial information, the '855-791-2391' pop-up is unrelated to any legitimate security company or PC repair service. Rather than calling the number in this pop-up, malware experts would encourage the full use of anti-malware tools for removing adware, Trojans and other, likely sources of all '855-791-2391' pop-up windows.

The Pop-Up that Stays Up, No Matter What

With attacks like the '888-391-6168' Scam Message, the 'Important Message' Pop-Up or the '855-791-2391' Pop-Up, misinformation is the primary attribute used to attack random Web surfers. However, sometimes, these pop-ups may include additional, hazardous content besides misleading warning messages. As of May of this year, malware experts found variants of the '855-791-2391' pop-up including both inaccurate warning messages and extra, script-based content that prevented its victims from closing the pop-up window.

These scripts may launch an '855-791-2391' pop-up in a borderless window without controls for closing it, or intercept any attempts to close the window with additional prompts. Regardless of how it's achieved, the consequence is an unable-to-be-closed '855-791-2391' pop-up that launches automatically, without being linked to any individual Web page you might be viewing. Restarting Windows closes the '855-791-2391' pop-up temporarily, but doesn't prevent any new '855-791-2391' pop-up windows from being launched.

Malware researchers also found that most '855-791-2391' pop-up messages displayed fictitious warnings about potentially collected bank account information. Such attacks could be used to encourage your personal contact with third parties who request protected information or try to access your PC via remote desktop features. Finally, some, but not all phishing attacks like '855-791-2391' pop-ups also include the possibility of launching attacks that may install new threats (besides any threats responsible for the original pop-up attacks).

Popping the Pop-Up Tactic

Research still is continuing for isolating the brands of Web browsers affected by most '855-791-2391' pop-up attacks, as well as into determining which other threats are generating them. Currently, malware researchers can verify that threatening or unwanted software responsible for recent '855-791-2391' pop-up attacks also may modify the Registry in ways indicative of previously installed threats. Some brands of anti-malware products have failed to detect the associated PC threat, but updating your security software's databases can reduce this possibility.

The '855-791-2391' pop-up centralizes around its capacity for tricking you into taking actions that may harm yourself or your computer. When you have reasons for doubting the validity of a pop-up alert, you should avoid any unnecessary contact with its content, even for closing the window. Terminating the window through a memory manager like Task Manager is highly recommended. Then, you can scan your PC for the responsible party via whatever anti-malware product is most worthy of your trust.