Why didn't I log in to qq, but I sent spam to my friends?

Your computer should be infected with QQ tail automatic message virus and should be dealt with as soon as possible.

The main characteristics of the virus:

This virus is not spread by using the security loopholes of QQ itself. In fact, this virus embeds malicious code in the homepage of some little-known websites, and automatically runs malicious Trojan programs by taking advantage of the vulnerability of iFrame system of Internet Explorer under windows system, thus invading the user's system, and then sending spam with QQ. We call this kind of website spam for the time being. If the user's machine does not have a system vulnerability patch installed or IE is upgraded to version 6.0, then malicious code embedded in the webpage accessed by using IE kernel series browsers will be run, and then a Trojan horse will be run to enter the user's machine through the vulnerability of IE. Then, when a user sends a message to a friend using QQ, Trojan will automatically insert an advertisement at the end of the message.

Solution:

Upgrade anti-virus software at any time In order to effectively prevent the virus from ravaging for a long time and provide users with the best service, Tencent has recently reached an agreement with Jinshan Company, which has officially authorized relevant virus killing tools to Tencent, and the majority of QQ users can download timely and effective virus killing tools directly from Tencent's website.