As has become the rule, the severity and speed of the worm's spread will rapidly increase exponentially within days after it appears ... This process is similar to The variants of the Bagle and Netsky worms have just appeared in the last few days.
Launched last Friday (Feb. 27), strengthened over the weekend, and finally broke out yesterday, the variants of the Bagle and Netsky worms have done a lot of work. Security must be concerned. Internet users are immediately advised to quickly upgrade the latest antivirus for their computer.
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Deep Bagle appeared in six variants: Bagle.d, Bagle.e, Bagle.f, Bagle.g, and Bagle.h; Netsky has two variants: Netsky.d and Netsky.e. A total of eight new worms have emerged, creating a massive attack on computer systems. Even Ken Dunham, director of malicious code research at iDefense, also notes that he has never seen the arrival of large numbers of computer worms in such a short time.
All 8 new variants hide in an e-mail attachment, although they have different titles and content. In addition, there is strong evidence that the author of the new variants is directly related to the hacker. In addition to the infectious function, variants of the worm contain a backdoor software that allows hackers to infiltrate and attack infected machines.
Among the new variants of Netsky, Netsky.d emerged as the fastest computer worm ever. According to Finnish security firm F-Secure, Netsky.d accounted for 43% of all infected e-mails. In addition, Bagle.c variant is "the" special attention of the security company Sophos.
According to Sophos, although there is no speed spread, Bagle.f and Bagle.g are particularly "smart". They are accompanied by password-protected compressed files, which makes the virus scanner unable to detect "abnormal" signs.
Somewhere on the Internet now appears the "purge" among the computer worms. At this point it is the battle between the Netsky and Bagle variants, namely that Netsky destroys Bagle.c. It is easy to see that Netsky and Bagle's authors can not be a single person, just two different hacker groups confronting each other. And so the battle between hackers continues, leaving behind hundreds of thousands of infected computers, exploited, hacked, and the network is always in a state of congestion.
