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Necurs
The Necurs botnet is a distributor of many pieces of malware, most notably Locky. Reports Around June 1, 2016, the botnet went offline, perhaps due to a glitch in the command and control server running Necurs. However, three weeks later, Jon French from AppRiver discovered a spike in spam emails, signifying either a temporary spike in the botnet's activity or return to its normal pre-June 1 state. In a 2020 report, it was noted to have particularly targeted India, Southeast Asia, Turkey and Mexico. Distributed malware Source: * Bart * Dridex * Locky * RockLoader * Globeimposter See also * Conficker * Command and control (malware) * Gameover ZeuS * Operation Tovar * Timeline of computer viruses and worms * Tiny Banker Trojan * Torpig * Zeus (malware) * Zombie (computer science) In computing, a zombie is a computer connected to the Internet that has been compromised by a hacker via a computer virus, computer worm, or trojan horse program and can be used to perform mali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locky
Locky is Ransomware, ransomware malware released in 2016. It is delivered by email (that is allegedly an invoice requiring payment) with an attached Microsoft Word document that contains Macro virus, malicious macros. When the user opens the document, it appears to be full of gibberish, and includes the phrase "Enable macro if data encoding is incorrect," a Social engineering (security), social engineering technique. If the user does enable macros, they save and run a binary file that downloads the ''actual'' encryption Trojan, which will encrypt all files that match particular extensions. Filenames are converted to a unique 16 letter and number combination. Initially, only the .locky file extension was used for these encrypted files. Subsequently, other file extensions have been used, including .zepto, .odin, .aesir, .thor, and .zzzzz. After encryption, a message (displayed on the user's desktop) instructs them to download the Tor browser and visit a specific criminal-operated Web ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dridex
Dridex, also known as Bugat and Cridex, is a type of malware that specializes in stealing bank credentials through a system that utilizes macros from Microsoft Word. It primarily targets Windows users who open malicious email attachments in Word or Excel, triggering macros that download Dridex and infect the system, exposing the user to banking theft. Dridex is designed to steal banking information from infected machines and immediately launch fraudulent transactions. It installs a keyboard logger and performs injection attacks to capture sensitive data. History Dridex first appeared in 2012 as an evolution of the earlier Cridex and Bugat banking trojans. It incorporated elements of its predecessors’ code but introduced a peer-to-peer (P2P) communication architecture to enhance concealment and redundancy. By 2015, it had become one of the most prevalent financial malware strains, particularly targeting banking credentials through email-based phishing campaigns and malic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botnet
A botnet is a group of Internet-connected devices, each of which runs one or more Internet bot, bots. Botnets can be used to perform distributed denial-of-service attack, distributed denial-of-service (DDoS) attacks, steal data, send Spamming, spam, and allow the attacker to access the device and its connection. The owner can control the botnet using command and control (C&C) software. The word "botnet" is a portmanteau of the words "robot" and "Computer network, network". The term is usually used with a negative or malicious connotation. Overview A botnet is a logical collection of Internet-connected devices, such as computers, smartphones or Internet of things (IoT) devices whose Computer security, security have been breached and control ceded to a third party. Each compromised device, known as a "bot," is created when a device is penetrated by software from a ''malware'' (malicious software) distribution. The controller of a botnet is able to direct the activities of these comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botnets
A botnet is a group of Internet-connected devices, each of which runs one or more bots. Botnets can be used to perform distributed denial-of-service (DDoS) attacks, steal data, send spam, and allow the attacker to access the device and its connection. The owner can control the botnet using command and control (C&C) software. The word "botnet" is a portmanteau of the words "robot" and " network". The term is usually used with a negative or malicious connotation. Overview A botnet is a logical collection of Internet-connected devices, such as computers, smartphones or Internet of things (IoT) devices whose security have been breached and control ceded to a third party. Each compromised device, known as a "bot," is created when a device is penetrated by software from a ''malware'' (malicious software) distribution. The controller of a botnet is able to direct the activities of these compromised computers through communication channels formed by standards-based network protocols, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gameover ZeuS
GameOver ZeuS (GOZ), also known as peer-to-peer (P2P) ZeuS, ZeuS3, and GoZeus, is a Trojan horse (computing), Trojan horse developed by Russian cybercriminal Evgeniy Bogachev. Created in 2011 as a successor to Jabber Zeus, another project of Bogachev's, the malware is notorious for its usage in bank fraud resulting in damages of approximately $100 million and being the main vehicle through which the CryptoLocker ransomware attack was conducted, resulting in millions of dollars of losses. At the peak of its activity in 2012 and 2013, between 500,000 and 1 million computers were infected with GameOver ZeuS. The original GameOver ZeuS was propagated through spam emails containing links to websites that would download the malware onto the victim's computer. The Zombie (computer science), infected computer was then integrated into a botnet, considered to be one of the most sophisticated and secure botnets in the world at the time. The GOZ botnet was particularly notable for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spam Emails
Email spam, also referred to as junk email, spam mail, or simply spam, refers to unsolicited messages sent in bulk via email. The term originates from a Monty Python sketch, where the name of a canned meat product, "Spam," is used repetitively, mirroring the intrusive nature of unwanted emails. Since the early 1990s, spam has grown significantly, with estimates suggesting that by 2014, it comprised around 90% of all global email traffic. Spam is primarily a financial burden for the recipient, who may be required to manage, filter, or delete these unwanted messages. Since the expense of spam is mostly borne by the recipient, it is effectively a form of "postage due" advertising, where the recipient bears the cost of unsolicited messages. This cost imposed on recipients, without compensation from the sender, makes spam an example of a "negative externality" (a side effect of an activity that affects others who are not involved in the decision). The legal definition and status of sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glitch
A glitch is a short-lived technical fault, such as a transient one that corrects itself, making it difficult to troubleshoot. The term is particularly common in the computing and electronics industries, in circuit bending, as well as among players of video games. More generally, all types of systems including human organizations and nature experience glitches. A glitch, which is slight and often temporary, differs from a more serious bug which is a genuine functionality-breaking problem. Alex Pieschel, writing for ''Arcade Review'', said: bug' is often cast as the weightier and more blameworthy pejorative, while 'glitch' suggests something more mysterious and unknowable inflicted by surprise inputs or stuff outside the realm of code". The word itself is sometimes humorously described as being short for "gremlins lurking in the computer hardware". Etymology Some reference books, including ''Random House's American Slang'', state that the term comes from the German word as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Tovar
Operation Tovar was an international collaborative operation carried out by law enforcement agencies from multiple countries against the Gameover ZeuS botnet, which was believed by the investigators to have been used in bank fraud and the distribution of the CryptoLocker ransomware. In early June 2014, the U.S. Department of Justice announced that Operation Tovar had temporarily succeeded in cutting communication between Gameover ZeuS and its command-and-control servers. The criminals attempted to send a copy of their database to a safe location, but it was intercepted by agencies already in control of part of the network. Results Russian Evgeniy Bogachev, aka "lucky12345" and "Slavik", was charged by the US FBI for being the ringleader of the gang behind Gameover Zeus and Cryptolocker. The database indicates the scale of the attack, and it makes decryption of CryptoLocked files possible. Restitution and victims In August 2014 security firms involved in the shutdown, Fox-IT an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
