The first botnet created with Mac computers running OS X software has been activated, according to reports filtering out across the Internet. Botnets are groups of computers, unwittingly linked.
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A botnet is a network consisting of hacked computers that are infected by malware and can be controlled by the botnet owner without the computer owner’s knowledge. They bots can be used to launch DDoS attacks that causes a website to go offline, sending spam messages, driving fake traffic, clicking advertisements and many more depending on the creativity of the botnet owner. Normally the user won’t even notice that their computer is a zombie bot being controlled because the malware is programmed to stay infected as long as possible bypassing both known antivirus or firewall software and does not damage or change any part of the operating system that may trigger the owner’s attention.
Some of the ways for an Internet user to get infected by malware turning their computer into a zombie bot is by downloading unknown files, visiting hacked websites and running email attachments blindly. Most of the time a computer infected by a bot malware will not find anything suspicious because it is very light on the system other than taking up the Internet bandwidth. Some bots can even run an invisible speedtest to determine the full speed so that it only uses up half of the bandwidth to avoid any suspicion by the owner.
Detecting infection associated with bots using antivirus and firewall is ineffective because they are normally made fully undetected through obfuscation before they are spread. A more effective way to detect bot infection is by analyzing the computer’s behavior and here are 6 tools that does that.
1. DE-Cleaner powered by AviraDE-Cleaner is a free service initiated by the Association of the German Internet Industry to increase the awareness of the user’s computer being a part of botnets. The official website contains information explaining botnets, how you get infected and etc. Two well-known security companies that creates one of the most popular antivirus software, Avira and Kaspersky has participated in this project, offering free scanner tools to detect and remove malicious software including bot malware.
Avira DE-Cleaner installer requires an Internet connection to download the program and latest pattern files. Take note that the graphical user interface is only in German but it can be easily used by clicking two buttons. It is possible to copy the Avira DE-Cleaner to an external USB drive for portable usage by clicking the “Auf USB-gerät kopieren” option located at the top of the program window.
Download DE-Cleaner powered by Avira
2. DE-Cleaner powered by Kaspersky
DE-Cleaner powered by Kaspersky is actually the same as Kaspersky Virus Removal Tool or simply known as AVPTool with a German language interface. Unlike Avira De-Cleaner, Kaspersky De-Cleaner doesn’t have an online update so you’ll have to download the latest version from their website if you need an up-to-date version.
Unfortunately Kaspersky DE-Cleaner is using the previous version of Kaspersky Virus Removal Tool version 10 while the current build with an English interface is already at version 11 which can be downloaded from the official Kaspersky’s website.
Download DE-Cleaner powered by Kaspersky
3. RuBotted
RuBotted is a free bot infection monitoring tool created by Trend Micro that is very easy to use with zero configuration or knowledge required. Simply download, install and allow the program to run automatically during Windows startup which will sit quietly in the notification area monitoring your Windows system.
When an infection is found, RuBotted uses another one of their free tool called HouseCall to clean up the bot malware. Other than monitoring files for suspicious bot-like behavior, RuBotted also works with their cloud based technology called Smart Protection Network to further detect both known and unknown botnets. One of the downside of RuBotted is it was last updated end of 2010 and still labelled as beta.
Download RuBotted
4. Mirage Anti-Bot
Mirage Anti-Bot is created by Jean-Pierre LESUEUR, the founder of Phrozen Software and is also the creator of DarkComet RAT. Basically Mirage Anti-Bot uses the Windows HOSTS file to prevent you from connecting the known command and control servers. The list of known bad URLs are downloaded from abuse.ch that tracks ZeuS, SpyEye and Palevo C&C servers. Other than that, PhrozenSoft also has their own global database and you can also add custom new host.
By defeault Mirage Anti-Bot will automatically updated the block list but you can also manually force an update check by clicking the Update button. One of the potential problem with Mirage Anti-Bot is it doesn’t backup the original HOSTS file before adding a bunch of hosts into it and there is no option to restore the original HOSTS file.
Download Mirage Anti-Bot
5. Bot Revolt Best journal app for ios.
Bot Revolt claims to an anti botnet consumer software that protects your computer from virus, bots and hackers. After testing, we found that Bot Revolt merely does the exact same thing as PeerBlock which is blocking known bad IP addresses according to categories such as governments, corporations, anti-P2P machines and countries. Their IP address list are compiled from a few sources such as spamcop, i-blocklist, spamhaus, blocklistpro and claims to block over 1 billion IP address. IPv4 only has a total of 4.3 billion addresses which means Bot Revolt has already blocked 23% of it…
Whenever your computer receive a packet, Bot Revolt checks the source of the incoming packet with their blocklist and will automatically allow or block the packet depending on the configuration. Bot Revolt is a shareware that cost $47 per year and the downloadable demo trial version is nearly fully crippled because you can only install and run the program. All buttons are disabled and you cannot even scroll the scrollbar to check on the lists of connections.
Download Bot Revolt
6. Norton Power Eraser
Norton Power Eraser used to be part of DE-Cleaner but has been withdrawn for some unknown reason. Unlike an antivirus software, the Norton Power Eraser uses aggressive method to detect rootkits, bot, scamware and can also result in being advised to remove legitimate programs.
Running the program will automatically check for an updated version and will download if it is available. At the main window, the Scan for Risks button will only run after a restart. Clicking on Advanced allows you to run 3 different types of scan which is reputation scan, system scan and multi-boot scan. Norton has always relied heavily on their reputation system scan whereby an unknown or less popular application will automatically get flagged as suspicious.
Download Norton Power Eraser
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Stupid hooled MS OS the root of all problems !!! Nothing changes for the best but problems are more and bigger ! When would MS go broke due crapy OS ???
ReplyHi Raymond,
informative article. thank you. Maybe you readers are interested in our online solution virustracker.net/ where you can check any IP or CIDR for malware infections. If you could add our tool to your list if would be awesome.
Reply![Macos Botnet Zombie Check Software Check Macos Botnet Zombie Check Software Check](/uploads/1/2/6/0/126075247/906131469.png)
thanks for the article, it has been very useful in my Infosec module at school
Replythanks,…very useful article
ReplyThanks Raymond – very helpful indeed for peace of mind.
Replyyou are sharing nice articles. Thank you very much.
Replysounds interesting.thanks raymond.love the site.keep up the good work.and thanks for this software.
Replythanks
Replythanks Sir Raymond …Great help for me especially for my Pc security project …Great Article !
ReplyJust wanted you to know that I enjoy your blog and the wealth of great information it provides. You are doing a great job
Replythank you very much, I’m downloading it now.
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ReplyLeave a Reply
Microsoft announced on Tuesday that it was in on the busting-up of Necurs: one of the world’s biggest, baddest, busiest botnets.
Some consider Necurs to be the largest botnet ever, with estimates from 2017 indicating that, at the time, it consisted of more than 6,000,000 infected computers. It’s metastasized in the last three years: Microsoft said that the malware has now infected more than nine million computers globally.
The majority of infected computers looked like they were in India, but almost every country in the world seemed to be affected. Necurs has been used to pump out multiple flavors of nastiness worldwide, with the notable exception of Russia: the malware deliberately avoided infecting computers set up to use a Russian keyboard.
Up until it temporarily went offline around December 2016, it was inflicting malware that included Locky ransomware. It got its wind knocked out for a few months, but when Necurs came back in March 2017, it started belching out a huge pump-and-dump scam.
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In its blog post, Microsoft said that, along with partners, it’s been spending the past eight years tracking and planning to knock the knees off Necurs. Microsoft says that coordinated legal and technical steps to disrupt the network of zombified computers will…
…help to ensure the criminals behind this network are no longer able to use key elements of its infrastructure to execute cyberattacks.
Microsoft says its Digital Crimes Unit, along with BitSight and others in the security community, first observed the Necurs botnet in 2012. Besides Locky and the pump-and-dump scam, Necurs has also been used by crooks to distribute the GameOver Zeus banking Trojan; fake pharmaceutical spam email and Russian dating scams.
Unsurprisingly, given that it’s tiptoed around computers using Russian keyboards in the past, Necurs is thought to be operated by Russian crooks. Besides the ransomware and the spam, the botnet has also been used as an attack dog, sent to jump on other computers on the internet and to steal credentials for online accounts, people’s personally identifiable information (PII), and other confidential data.
Microsoft says that Necurs’ operators also sell or rent access to their zombie computers to other crooks – what’s known as a botnet-for-hire service. The botnet has also been used to distribute financially targeted malware and cryptomining. It also has the capability of being used to launch a distributed denial of service (DDoS) attack. Its operators haven’t flipped the switch on that – yet. They could activate that capability at any time, Microsoft says.
Necurs has been a powerful force of yuck: Microsoft says that during one 58-day period, its staff watched as one Necurs-infected computer sent a total of 3.8 million spam emails to over 40.6 million potential victims.
How did they castrate that bull?
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The trick was to grab it by its algorithm. Microsoft says it’s been heading up activities that will keep the crooks behind Necurs from registering new domains to execute attacks in the future – a feat that was accomplished by analyzing how Necurs systematically generates new domains through an algorithm.
From its post:
We were then able to accurately predict over six million unique domains that would be created in the next 25 months. Microsoft reported these domains to their respective registries in countries around the world so the websites can be blocked and thus prevented from becoming part of the Necurs infrastructure. By taking control of existing websites and inhibiting the ability to register new ones, we have significantly disrupted the botnet.
Microsoft also had help from the courts: on 5 March, the US District Court for the Eastern District of New York issued an order enabling the company to seize the US-based infrastructure Necurs uses to distribute malware and infect computers.
The next step is to partner with ISPs to scrub Necurs malware off of victimized computers: an effort that also involves partnering with law enforcement, government Computer Emergency Response Teams (CERTs), ISPs and government agencies. Microsoft says it’s working with domain registries, government CERTs and law enforcement in Mexico, Colombia, Taiwan, India, Japan, France, Spain, Poland and Romania, among others.
Want to make sure you’re free of malware? Microsoft suggests you head over to its Safety Scanner: a tool that helps to remove malware from Windows systems. Sophos also has its free Virus Removal Tool, as well as free tools for protecting both Windows and Mac systems.
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