Semalt Warns Of 4 Spam Botnets

23.05.2018

Semalt Warns Of 4 Spam Botnets

Spam emails form a majority part of the mails reaching people computers. The majority of the emails people receive come from spam. In most cases, these emails originate from bots and botnets. Combating botnet attacks is not an easy task. For instance, one ought to mind about the number of the bots, the messages sent as well as the bytes sent by the botnet.

Oliver King, a top expert from Semalt, talks here about some of the botnet attacks and how to control their effects.

Stay safe from the following botnets.

Grum (Tedroo) Grum botnet employs some of the new techniques to thrive on its victims. This botnet is a kernel-mode rootkit which is very dif cult for lters to detect it. In most operating systems, this botnet works as a typical virus, whereby it infects some of its victim's user registries. In this type of attack, it is clear that most of the autorun les activate.

Grum occurs as a spam selling pharmaceutical products like Viagra. Grum has 600,000 members, responsible for sending over 40billion emails each day to its target niche. Grum also contributes to over 25% of the spam emails in its victims.

Bobax (Kraken/Oderoor/Hacktool.spammer)

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23.05.2018

Bobax occurs as an anonymous botnet appearing through web browser servers. This attack makes it dif cult for white hat hackers to detect it, becoming almost impossible to trace. Currently, more than 10,000 members are on this attack. Similarly, it contributes to about 15% of all the spam emails being sent over time. From this gure, Bobax is responsible for sending about 27 billion spam emails each day. Bobax attack resembles the famous Kraken botnet. Some of its modes of action include hiring call to action. This spam can attack following different channels. Next time you hire a bot, beware of the source.

Pushdo (Cutwail/Pandex) Since 2007, Pushdo has been sending spam emails to over 19billion internet users worldwide. Pushdo began its mass attack alongside Storm botnet. However, Storm is no longer in the game, but Pushdo still goes on. Pushdo appears as a downloader software. When users access it, it downloads another software by the name Cutwail.

Cutwail happens to be the spamming software, which gains access to the victim's computer. Pushdo spam comes in a variety of ways, including online casinos, pharmaceuticals and phishing schemes.

Rustock (Costrat) Rustock survived a signi cant spam botnet burst down in 2008. Some of the attacks which fell subject of these include McColo botnet. Rustock botnet spam attack consists of a network of nearly two million botnets. One of its unique modes of attacks consists of the way it attacks from 3 a.m. to 7 a.m. EST (GM-5) daily. The emails contain clones of emails from some of the legitimate email addresses as well as social media integration messages. This spam attack is often undetectable and can appear like usual pharmaceutical spams.

Conclusion Spam emails come from a typical encounter for people who use the internet on a daily basis. It is essential for website owners to use spam ltering options. Moreover, internet users should make their computers secure by installing the latest spyware software.

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