The pop-ups displayed by Sonoffer.online are part of an online tactic that promotes questionable products and services. The first step of this fraud's strategy is to attract users to its website Sonoffer.online, which usually happens through unsolicited redirects by a browser hijacker or by other similarly unsafe pages. Users also land on such shady websites after clicking on random advertisements while surfing on the Internet.
Next, once users visit Sonoffer.online, they see a fake CAPTCHA- verification test message that is supposed to confirm the visitor is not a robot:
'Sonoffer.online wants to Show notifications
Click Allow to confirm that you are not a robot!'
Clicking on the 'Allow' button included in the text subscribes the user to browser notifications from this questionable website. Subsequently, all advertisements and banners displayed by the fraudsters on subscribers' screens expose users to the risk of infecting their computers with severe malware threats by rerouting online traffic to potentially corrupted websites. At the same time, they have no benefits to the user whatsoever. Besides, the amount of these third-party sponsored notifications may be sufficient to deteriorate the computer's performance and browsing quality.
An adware program that has already managed to sneak into a computer also can cause Sonoffer.online pop-ups. Therefore, malware researchers advise affected users to scan their computers with an anti-virus program.