njRAT, also known as Bladabindi, [1] is a remote access tool (RAT) with user interface or trojan which allows the holder of the program to control the end-user's computer. It was first found in June 2013 with some variants traced to November 2012. It was made by a hacking organization from different countries called M38dHhM and was often used against targets in the Middle East. It can be spread through phishing and infected drives. To date, there are many versions of this virus, the most famous of which is njRAT Green Edition.
Developer(s) | M38dHhM |
---|---|
Final release | 0.7d |
Written in | Visual Basic .NET |
Operating system | Microsoft Windows |
Type | Remote Administration Tool (RAT) |
A surge of njRAT attacks was reported in India in July 2014. [2] In an attempt to disable njRAT's capabilities, Microsoft took down four million websites in 2014 while attempting to filter traffic through no-ip.com domains. [3]
In March 2016, Softpedia reported that spam campaigns spreading remote access trojans such as njRAT were targeting Discord. [4] In October 2020, Softpedia also reported the appearance of a cracked VMware download that would download njRAT via Pastebin. Terminating the process would crash the computer. [5]
An Islamic State website was hacked in March 2017 to display a fake Adobe Flash Player update download, which instead downloaded the njRAT trojan. [6]
In January 2023, outbreaks of Trojan infections were seen in the Middle East. The attackers used .cab files with supposedly political conversation, when opened, they launched a .vbs script that downloaded malware from the cloud. [7]
NjRAT, like many remote access trojans, works on the principle of a reverse backdoor, that is, it requires open ports on the attacker's computer. After creating the malware (client) and opening it, the attacker's server receives a request from the client side. After a successful connection, the attacker can control the victim's computer by sending commands to the server when the client part processes them.
Common antivirus tags for NjRAT are as follows:
The standard version of the Trojan lacks encryption algorithms, which is why it can be easily detected by antivirus. However, an attacker can encrypt it manually, so that it will not be detected by popular antivirus software.
Malware is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy. Researchers tend to classify malware into one or more sub-types.
Back Orifice is a computer program designed for remote system administration. It enables a user to control a computer running the Microsoft Windows operating system from a remote location. The name is a play on words on Microsoft BackOffice Server software. It can also control multiple computers at the same time using imaging.
Back Orifice 2000 is a computer program designed for remote system administration. It enables a user to control a computer running the Microsoft Windows operating system from a remote location. The name is a pun on Microsoft BackOffice Server software.
This timeline of computer viruses and worms presents a chronological timeline of noteworthy computer viruses, computer worms, Trojan horses, similar malware, related research and events.
Linux malware includes viruses, Trojans, worms and other types of malware that affect the Linux family of operating systems. Linux, Unix and other Unix-like computer operating systems are generally regarded as very well-protected against, but not immune to, computer viruses.
In computing, Download.ject is a malware program for Microsoft Windows servers. When installed on an insecure website running on Microsoft Internet Information Services (IIS), it appends malicious JavaScript to all pages served by the site.
Graybird is a Trojan horse that hides its presence on compromised computers and downloads files from remote Web sites. There are many variations of this virus.
Mobile malware is malicious software that targets mobile phones or wireless-enabled Personal digital assistants (PDA), by causing the collapse of the system and loss or leakage of confidential information. As wireless phones and PDA networks have become more and more common and have grown in complexity, it has become increasingly difficult to ensure their safety and security against electronic attacks in the form of viruses or other malware.
In computing, the term remote desktop refers to a software- or operating system feature that allows a personal computer's desktop environment to be run remotely from one system, while being displayed on a separate client device. Remote desktop applications have varying features. Some allow attaching to an existing user's session and "remote controlling", either displaying the remote control session or blanking the screen. Taking over a desktop remotely is a form of remote administration.
In computer security, MPack is a PHP-based malware kit produced by Russian crackers. The first version was released in December 2006. Since then a new version is thought to have been released roughly every month. It is thought to have been used to infect up to 160,000 PCs with keylogging software. In August 2007 it was believed to have been used in an attack on the web site of the Bank of India which originated from the Russian Business Network.
The Zlob Trojan, identified by some antiviruses as Trojan.Zlob, is a Trojan horse which masquerades as a required video codec in the form of ActiveX. It was first detected in late 2005, but only started gaining attention in mid-2006.
CCleaner, developed by Piriform Software, is a utility used to clean potentially unwanted files and invalid Windows Registry entries from a computer. It is one of the longest-established system cleaners, first launched in 2004. It was originally developed for Microsoft Windows only, but in 2012, a macOS version was released. An Android version was released in 2014.
Slenfbot is the classification for a family of malicious software (malware), which infects files on Microsoft Windows systems. Slenfbot was first discovered in 2007 and, since then, numerous variants have followed; each with slightly different characteristics and new additions to the worm's payload, such as the ability to provide the attacker with unauthorized access to the compromised host. Slenfbot primarily spreads by luring users to follow links to websites, which contain a malicious payload. Slenfbot propagates via instant messaging applications, removable drives and/or the local network via network shares. The code for Slenfbot appears to be closely managed, which may provide attribution to a single group and/or indicate that a large portion of the code is shared amongst multiple groups. The inclusion of other malware families and variants as well as its own continuous evolution, makes Slenfbot a highly effective downloader with a propensity to cause even more damage to compromised systems.
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur, an independent programmer and computer security coder from France. Although the RAT was developed back in 2008, it began to proliferate at the start of 2012. The program was discontinued, partially due to its use in the Syrian civil war to monitor activists but also due to its author's fear of being arrested for unnamed reasons. As of August 2018, the program's development "has ceased indefinitely", and downloads are no longer offered on its official website.
Dridex, also known as Bugat and Cridex, is a form of malware that specializes in stealing bank credentials via a system that utilizes macros from Microsoft Word.
Mirai is malware that turns networked devices running Linux into remotely controlled bots that can be used as part of a botnet in large-scale network attacks. It primarily targets online consumer devices such as IP cameras and home routers. The Mirai botnet was first found in August 2016 by MalwareMustDie, a white hat malware research group, and has been used in some of the largest and most disruptive distributed denial of service (DDoS) attacks, including an attack on 20 September 2016 on computer security journalist Brian Krebs' website, an attack on French web host OVH, and the October 2016 DDoS attacks on Dyn. According to a chat log between Anna-senpai and Robert Coelho, Mirai was named after the 2011 TV anime series Mirai Nikki.
MalwareMustDie, NPO is a whitehat security research workgroup that was launched in August 2012. MalwareMustDie is a registered nonprofit organization as a medium for IT professionals and security researchers gathered to form a work flow to reduce malware infection in the internet. The group is known for their malware analysis blog. They have a list of Linux malware research and botnet analysis that they have completed. The team communicates information about malware in general and advocates for better detection for Linux malware.
EternalBlue is a computer exploit software developed by the U.S. National Security Agency (NSA). It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network. The NSA knew about this vulnerability but did not disclose it to Microsoft for several years, since they planned to use it as a defense mechanism against cyber attacks. In 2017, the NSA discovered that the software was stolen by a group of hackers known as the Shadow Brokers. Microsoft was informed of this and released security updates in March 2017 patching the vulnerability. While this was happening, the hacker group attempted to auction off the software, but did not succeed in finding a buyer. EternalBlue was then publicly released on April 14, 2017.
PLATINUM is the name given by Microsoft to a cybercrime collective active against governments and related organizations in South and Southeast Asia. They are secretive and not much is known about the members of the group. The group's skill means that its attacks sometimes go without detection for many years.
Hack Forums is an Internet forum dedicated to discussions related to hacker culture and computer security. The website ranks as the number one website in the "Hacking" category in terms of web-traffic by the analysis company Alexa Internet. The website has been widely reported as facilitating online criminal activity, such as the case of Zachary Shames, who was arrested for selling keylogging software on Hack Forums in 2013 which was used to steal personal information.