Trojan software list

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This technical aspect might put many people off using the system. However, the monitor has a large following, so there is a big user community out there to advise newbies. Kibana is probably the most regularly used interface for Zeek.

This is a fee-based system that applies application layer analysis , so it will detect signatures that are spread across data packets. There is also a file extraction facility that enables the analysis of virus-infected files.

Suricata has a built-in scripting module that enables you to combine rules and get a more precise detection profile. This IDS uses both signature-based and anomaly-based detection methods. VRT rules files written for Snort can also be imported into Surcata because this intrusion detection system is compatible with the Snort platform. However, the Suricata GUI is very sophisticated and includes graphical representations of data, so you might not need to use any other tool to view and analyze data.

Sagan is a free host-based intrusion detection system that can be installed on Unix , Linux , and Mac OS. Sagan is also compatible with other Snort-type systems, such as Snorby , BASE , Squil , and Anaval , which could all provide a front end for data analysis.

Sagan is a log analysis tool and it needs to be used in conjunction with other data gathering systems in order to create a full intrusion detection system. The utility includes an IP locator , so you can trace the sources of suspicious activities to a location. It can also group together the activities of suspicious IP addresses to identify team or distributed attacks.

The analysis module works with both signature and anomaly detection methodologies. Sagan can automatically execute scripts to lock down the network when it detects specific events.

It performs these prevention tasks through interaction with firewall tables. So, this is an intrusion prevention system.

It was written to run specifically on Ubuntu. Host-based analysis checks for file changes and network analysis is conducted by a packet sniffer , which can display passing data on a screen and also write to a file. The analysis engine of Security Onion is complicated because it combines the procedures of so many different tools.

It includes device status monitoring as well as network traffic analysis. There are both signature-based and anomaly-based alert rules included in this system. The interface of Kibana provides the dashboard for Security Onion and it includes graphs and charts to ease data analysis. This IDS focuses on rootkit detection and file signature comparisons. The data gathering module populates a database of characteristics that are gleaned from log files.

This database is a system status snapshot and any changes in device configuration trigger alerts. Those changes can be canceled by reference to the database or the database can be updated to reflect authorized configuration alterations. System activity checks are performed on-demand and not continuously, but it can be scheduled as a cron job.

The rules base of AIDE uses both signature-based and anomaly-based monitoring methods. In fact, it integrates Aircrack-NG as its wireless packet sniffer. Aircrack-NG is a well-known hacker tool, so this association may make you a little wary. This is a free utility that includes three elements:.

The sensor is also a transmitter , so it can implement intrusion prevention actions and cripple unwanted transmissions.

The server performs analysis and also launches intervention policies to block detected intrusions. The interface module displays events and alerts to the systems administrator. This is also where settings can be tweaked and defensive actions can be adjusted or overridden. It uses agents running at different points on the network, which report back to a central analysis module. Each agent performs file integrity checking , log file monitoring , and port monitoring.

The processes look for rootkit viruses , rogue SUIDs user access rights , and hidden processes. Network communication between agents and the console is protected by encryption. Connections for the delivery of log file data include authentication requirements, which prevent intruders from hijacking or replacing the monitoring process. You will need to keep backups of your configuration files and user identities in order to take action to resolve the problems that the Samhain monitor reveals.

Central log files and configuration backups are signed with a PGP key to prevent tampering by intruders. These blocks usually only last a few minutes, but that can be enough to disrupt a standard automated brute-force password-cracking scenario. Alert situations include excessive failed login attempts.

A problem with Fail2Ban is that it focuses on repeated actions from one address. Each filter is combined with an action to perform in the event of an alert condition being detected. There are a number of remote access systems that could have legitimate applications, but are well-known as tools that are mainly used by hackers as part of a Trojan; these are categorized as Remote Access Trojans.

The details of the best-known RATs are explained below. The original system exploited a weakness in Windows This RAT is able to hide within the operating system, which initially makes it difficult to detect. However, nowadays, most antivirus systems have the Back Orifice executable files and occlusion behavior logged in their databases as signatures to look out for. A nice feature of this software is that it has an easy-to-use console that the intruder can use to navigate around the infected system.

The remote element can be slipped into a target computer through a Trojan. Once installed, this server program communicates with the client console using standard networking procedures.

Back Orifice is known to use port number This uses the same client-server architecture that Back Orifice pioneered with the server part of the system being the malware that gets installed surreptitiously on the target computer. Once the server element is operational, the hacker can access the victim computer at will through the client program.

The client connects to the target computer at port number The server is also able to open connections back to the client and that uses port number Beast was written in and is still widely in use.

In , a Windows-based backdoor Trojan horse called Beast emerged and was capable of infecting almost all versions of Windows.

Then, in late , another backdoor Trojan called Zlob was distributed disguised as a required video codec in the form of ActiveX. The s also saw a rise in the number of Mac users, and cybercriminals followed suit. The motivations behind Trojan attacks also began to shift around this time. Many early cyberattacks were motivated by a lust for power, control, or pure destruction.

By the s, an increasing number of attacks were motivated by greed. In , a Trojan named Zeus targeted Microsoft Windows in order to steal banking information by means of a keylogger. In , hackers released Torpig, also known as Sinowal and Mebroot, which turned off anti-virus applications, allowing others to access the computer, modify data, and steal confidential information like passwords and other sensitive data.

As cybercrime entered the s, the greed continued, but hackers started thinking bigger. The rise of untraceable cryptocurrencies like Bitcoin led to a rise in ransomware attacks. In , the Cryptolocker Trojan horse was discovered. Cryptolocker encrypts the files on a user's hard drive and demands a ransom payment to the developer in order to receive the decryption key.

Later that same year, a number of copycat ransomware Trojans were also discovered. The s have also seen a shift in how victims are targeted. While many Trojans still use a blanket approach, attempting to infect as many users as possible, a more targeted approach seems to be on the rise. Many of the Trojans we hear about today were designed to target a specific company, organization, or even government. In , Stuxnet , a Windows Trojan, was detected. It was the first worm to attack computerized control systems, and there are suggestions that it was designed to target Iranian nuclear facilities.

In , Tiny Banker Trojan Tinba made headlines. In , the Emotet Trojan , once a banking Trojan in its own right, was seen to be delivering other types of malware, including other Trojans. As one of the oldest and most common ways to deliver malware, the history of Trojans follows the history of cybercrime itself. The days of pranks are long gone. Instead, they continue to be serious cybercriminal tools used mostly for data stealing, espionage, and Distributed Denial of Service DDoS attacks.

Here are some common threats that come from Trojan attacks:. They attack mobile devices as well , which makes sense given the tempting target presented by the billions of phones in use. Such Trojans usually lurk on unofficial and pirate app markets, enticing users to download them. The Trojans run the full gamut of mischief, infecting the phone with ads and keyloggers, which can steal information. Dialer Trojans can even generate revenue by sending out premium SMS texts.

The idea? To extend the time a malicious program runs on your device. This type of Trojan infects your mobile device and can send and intercept text messages. Texts to premium-rate numbers can drive up your phone costs. This Trojan takes aim at your financial accounts.

That includes banking, credit card, and bill pay data. Trojan malware attacks can inflict a lot of damage. At the same time, Trojans continue to evolve. Here are three examples. They can also impact your mobile devices, including cell phones and tablets. In general, a Trojan comes attached to what looks like a legitimate program.

In reality, it is a fake version of the app, loaded up with malware. Cybercriminals will usually place them on unofficial and pirate app markets for unsuspecting users to download. In addition, these apps can also steal information from your device, and generate revenue by sending premium SMS texts. One form of Trojan malware has targeted Android devices specifically.

The result? Cybercriminals could redirect traffic on the Wi-Fi-connected devices and use it to commit various crimes. Trojans take their name from the hollow wooden horse that the Greeks hid inside of during the Trojan War.

The Trojans, thinking the horse was a gift, opened their walled city to accept it, allowing the Greeks to come out of hiding at night to attack the sleeping Trojans. All rights reserved. Firefox is a trademark of Mozilla Foundation. App Store is a service mark of Apple Inc. Alexa and all related logos are trademarks of Amazon.

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