Botnets

What is Botnet - Cybercriminals #1 Weapon

The word Botnet is formed from the words ‘robot’ and ‘network’. Cybercriminals use special Trojan viruses to breach the security of several users’ computers, take control of each computer and organise all of the infected machines into a network of ‘bots’ that the criminal can remotely manage.

Botnet Prevention- What is Botnet   

Botnet Prevention- What is Botnet   

 

How Botnets can impact you
Often, the cybercriminal will seek to infect and control thousands, tens of thousands or even millions of computers – so that the cybercriminal can act as the master of a large ‘zombie network’ – or ‘bot-network’ – that is capable of delivering a Distributed Denial of Service (DDoS) attack, a large-scale spam campaign or other types of cyberattack.

In some cases, cybercriminals will establish a large network of zombie machines and then sell access to the zombie network to other criminals – either on a rental basis or as an outright sale. Spammers may rent or buy a network in order to operate a large-scale spam campaign.

How to prevent your computer becoming part of a Botnet
Installing effective anti-malware software will help to protect your computer against Trojans and other threats.

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Cyber Security Developments

Cyber Security Is The Backbone Any Online Businesses – Here Are Some Quick Tips To Keep Yourself Informed About The Latest Threats Surrounding Your Business.

                                    Cyber Security Developments

                                    Cyber Security Developments

Within a standard nine to five working day, it’s said that there are almost two million data records lost or stolen. Cybercrime has become something of an epidemic in recent years – and it’s no exaggeration to say that everyone is at risk.

Hackers operate in an increasingly complex way and are happy to target small businesses and individuals, who are most likely to be vulnerable to attack. The nature of the threat changes as technology advances and so the only way to stay safe is to stay up to date.

But that’s easier said than done, right? How do you keep up to date with the latest cybersecurity developments?

Follow The News

When it comes to cyber security, ignorance is not bliss – it’s a recipe for disaster. It’s imperative that you identify and follow a news feed that you can trust. By doing so, you can keep on top of any fresh threats that have emerged, learn lessons from other cyber attacks and pick up the latest tips and advice from influencers and experts in this field.

News from this sector really shouldn’t be seen as the preserve of IT specialists – the scale and nature of the threat suggest that this should be of interest to everyone. There’s a burgeoning band of podcasts available on the subject for people who prefer to digest content in this way too.

Bring Up The ‘Security Question’

If you think that installing an anti-virus program is enough, then you’re mistaken. Don’t just presume that you’re safe because you have this because this is merely the first line of defense to root out attacks. By adopting a safety first mindset you can ensure that the way you handle your data is less risky.

Whether it’s securing your Wi-Fi network at home, managing and updating your passwords on a regular basis or the way you collect, collate and analyze data throughthe point of sale software at work, continually ask yourself ‘is this safe?’ Just as ignorance isn’t bliss, complacency could prove your undoing. Place ‘security’ high on the list of credentials to consider when buying new software or hardware, don’t just go for the cheapest option.

Training

Even the experts are constantly having to refresh their understanding of the threat posed by cyber attacks. It pays to search out training opportunities, especially if you’re a business. You are, after all, only as safe as the people operating your software and systems and you don’t want to put the security of your business in the hands of someone who is unsure about what they are doing. Individuals and businesses alike can find free learning materials on Cybrary to help plug any knowledge gaps they have.

It’s Good To Talk

Cyber attacks are incredibly common – but people don’t often enough talk about their experiences. Perhaps you’re afraid or embarrassed to have been caught out? There’s no need to be. In fact, talking with friends and colleagues could really help you to stay safe. Pass on tips about new apps, good software, neat tips and tricks and any new cyber attack tactics you have come across and you can help to do your own bit to combat the criminals.

By keeping up to speed with security news, refreshing your training, sharing tips and tricks and adopting a safety first attitude you’ll give yourself the best possible chance of staying on top of cyber security developments and, best of all, safe.

Secure Your Website, from Cyber Attacks

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The average website was attacked 44 times a day during the last quarter of 2017, according to new research from security specialist SiteLock.

The company analyzed six million sites to identify trends in the behavior and tactics of attackers. Though the number of attacks represents a 25 percent decrease over the previous quarter, it still means a site could be attacked 16,000 times a year.

"A decrease in attacks does not mean that websites are safer. In fact, it may even be the opposite," says Neill Feather, president of SiteLock on the company's blog. "Hackers are constantly trying new avenues and even leveraging older tactics that continue to be successful. As our research shows, cybercriminals are now able to successfully breach a site with fewer, more targeted attacks. Now more than ever, businesses need to evaluate their current security posture and ensure they have both the right technology and a response plan in place should a hack occur."

Among other findings are that around one percent of sites sampled are infected with malware each week. Yet only 19 percent of infected sites are blacklisted by search engines. WordPress sites using plugins are twice as likely to be infected as sites that don’t employ a content management system. In addition, 46 percent of infected WordPress sites have the latest core updates. The average number of infected files per site increased by 0.8 percent to 309.

The malware being used is increasingly complex too. 51 of the malware found was categorized as Encoded Malware, meaning it was randomly generated or difficult to decode. These are often parts of groups of files called 'attack kits'. Backdoors made up 12 percent of files, resulting in more files being uploaded to infected sites.

Botnets Gamarue Cyber Criminals - Cybersecurity Report

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The past year has shown us the significant impact of the Gamarue botnet on computers worldwide; cyber criminals leveraging less sophisticated methods to infect machines and in some cases, extort ransoms from victims; and ransomware being used in a wide range of cybercrime activity, including email phishing campaigns and destructive attacks like WannaCrypt. Organizations that adopt security hygiene methods, security solutions, and best practices, have cyber resilience and incident response plans and employ the right mix of people and processes for dealing with the various threat scenarios and attacks described could at least minimize damage and impact from them.

CyberSecOP is a trusted security advisor and partner to large global organizations. To learn more about our security offerings, visit www.cybersecop.com and check out the Security News Section for our perspectives on additional trending threats and topics.

 

Breaking Botnets

Cyber criminals are continuing to relentlessly infect computers and engage in botnet activity with the intention to have a large infrastructure that they can then mine for sensitive data and possibly monetize, as is the case with ransomware threats. Defending against botnet activity is not a simple task and, as in years past, takes a massive effort by both private and public organizations working together.

A bot is a program that allows an attacker to take control of an infected computer. A botnet is a network of infected computers that communicate with command-and-control servers. Cybercriminals use botnets to conduct a variety of online attacks, such as send spam, conduct denial-of-service attacks on websites, spread malware, facilitate click fraud in online advertising, and much more.

There have been several botnet disruptions coordinated by the Microsoft Digital Crimes Unit (DCU) going back to the November 2008 Conficker botnet disruption. On November 29, 2017, the Microsoft Digital Crimes Unit (DCU) coordinated the disruption of the Gamarue botnet (also known as Andromeda).

 

·         1,214 domains and IP addresses of the botnet’s command and control servers

·         80+ associated malware families

Impact of the disruption operation

Worldwide coordination of research and investigation efforts is key to disrupting a malware operation with the magnitude of Gamarue. As a result of such complexities, public/private partnerships between global law enforcement agencies and private industry partners are essential to a successful outcome.

A significant aspect of the Gamarue disruption was the kill chain effect that the operation had on the distribution of 80 additional malware families. By disrupting a major malware family like Gamarue, we are able to stop potential harm being caused to millions of users worldwide and begin the restoration of victims’ devices.

Since the botnet disruption operation in November 2017, the sinkhole Microsoft created has experienced a 30% decrease in Gamarue victims worldwide, as shown in Figure 6.

Microsoft continues to collaborate with public and private industry partners to identify affected devices through the Microsoft Digital Crimes Unit Cyber Threat Intelligence Program to accelerate the remediation process.

 

To detect and protect computers from Gamarue and other malware, use security solutions that apply advanced machine learning models as well as generic and heuristic techniques. CyberSecOP is continuing the collaborative effort to help clean Gamarue-infected computers by providing a one-time package with samples (through the Virus Information Alliance) to help organizations protect their employees and customers.

As the cost of circumventing security measures increases, hackers are taking advantage of “low-hanging fruit”, such as infrastructure and apps used by organizations and consumers, with the intention of infecting computers and gaining access to sensitive data such as credentials. In this section, we share three of the low hanging fruit routes employed by cyber attackers: social engineering, poorly secured cloud apps, and legitimate software platform features.