Watering hole is a computer attack strategy in which an attacker guesses or observes which websites an organization often uses and infects one or more of them with malware. Eventually, some member of the targeted group will become infected. [1] [2] [3] Hacks looking for specific information may only attack users coming from a specific IP address. This also makes the hacks harder to detect and research. [4] The name is derived from predators in the natural world, who wait for an opportunity to attack their prey near watering holes. [5]
One of the most significant dangers of watering hole attacks is that they are executed via legitimate websites that are unable to be easily blacklisted. Also, the scripts and malware used in these attacks are often meticulously created, making it challenging for an antivirus software to identify them as threats. [6]
Websites are often infected through zero-day vulnerabilities on browsers or other software. [4] A defense against known vulnerabilities is to apply the latest software patches to remove the vulnerability that allowed the site to be infected. This is assisted by users to ensure that all of their software is running the latest version. An additional defense is for companies to monitor their websites and networks and then block traffic if malicious content is detected. [7] Other defense techniques include utilizing complex passwords and passkeys to access websites as well as biometric information to protect data from attacks. Utilizing web injections such as firewalls or downloading anti-virus software on to devices can also protect from attacks. [8] Additionally, websites can enhance protection by disabling or removing vulnerable software, such as Flash and Adobe Reader, which are commonly targeted in cyber attacks.
In December 2012, the Council on Foreign Relations website was found to be infected with malware through a zero-day vulnerability in Microsoft's Internet Explorer. In this attack, the malware was only deployed to users using Internet Explorer set to English, Chinese, Japanese, Korean and Russian. [13]
Havex was discovered in 2013 and is one of five known Industrial Control System (ICS) tailored malware developed in the past decade. Energetic Bear began utilizing Havex in a widespread espionage campaign targeting energy, aviation, pharmaceutical, defense, and petrochemical sectors. The campaign targeted victims primarily in the United States and Europe. [14] Havex exploited supply chain and watering-hole attacks on ICS vendor software in addition to spear phishing campaigns to gain access to victim systems. [15]
In mid-early 2013, attackers used the United States Department of Labor website to gather information on users that visited the website. This attack specifically targeted users visiting pages with nuclear-related content. [16]
In late 2016, a Polish bank discovered malware on the institution's computers. It is believed that the source of this malware was the web server of the Polish Financial Supervision Authority. [17] There have been no reports on any financial losses as a result of this hack. [17]
There was an organization-level watering-hole attack in Montreal from 2016-2017 by an unknown entity causing a data breach. [18]
From August to September 2017, the installation binary of CCleaner distributed by the vendor's download servers included malware. CCleaner is a popular tool used to clean potentially unwanted files from Windows computers, widely used by security-minded users. The distributed installer binaries were signed with the developer's certificate making it likely that an attacker compromised the development or build environment and used this to insert malware. [19] [20]
In June 2017, the NotPetya (also known as ExPetr) malware, believed to have originated in Ukraine, compromised a Ukrainian government website. The attack vector was from users of the site downloading it. The malware erases the contents of victims' hard drives. [21]
There was a country-level watering-hole attack in China from late 2017 into March 2018, by the group "LuckyMouse" also known as "Iron Tiger", "EmissaryPanda", "APT 27" and "Threat Group-3390." [22]
In 2019, a watering-hole attack, called Holy Water Campaign, targeted Asian religious and charity groups. [23] Victims were prompted to update Adobe Flash which triggered the attack. It was creative and distinct due to its fast evolution. [24] The motive remains unclear. [24] Experts provided a detailed technical analysis along with a long list of Indicators of Compromise (IoCs) involved in the campaign, but none could be traced back to an Advanced Persistent Threat. [25]
In the U.S. a joint civil suit filed by the American Civil Liberties Union (ACLU), Civil Liberties and Transparency Clinic, and Privacy International against various branches of the U.S. Government alleged that the U.S. government had been using watering hole attacks in a new mass invasion of privacy of ordinary citizens. Further, the nature of the civil suit was a failure to comport relevant documents as part of a FOIA request to the various agencies.ACLU and Privacy International et al v. United States Agencies docket available on Courtlistener.com
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.
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.
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.
Ransomware is a type of cryptovirological malware that permanently blocks access to the victim's personal data unless a ransom is paid. While some simple ransomware may lock the system without damaging any files, more advanced malware uses a technique called cryptoviral extortion. It encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. In a properly implemented cryptoviral extortion attack, recovering the files without the decryption key is an intractable problem, and difficult-to-trace digital currencies such as paysafecard or Bitcoin and other cryptocurrencies are used for the ransoms, making tracing and prosecuting the perpetrators difficult.
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.
Piriform Software Ltd is a British software company based in London, owned since 2017 by Avast which itself became part of NortonLifeLock in 2022. The company develops cleaning and optimisation tools for Microsoft Windows, macOS and Android operating systems, including CCleaner, CCleaner Browser, Defraggler, Recuva and Speccy. On 22 September 2015, Piriform launched CCleaner Cloud, a tool to maintain computers remotely.
A supply chain attack is a cyber-attack that seeks to damage an organization by targeting less secure elements in the supply chain. A supply chain attack can occur in any industry, from the financial sector, oil industry, to a government sector. A supply chain attack can happen in software or hardware. Cybercriminals typically tamper with the manufacturing or distribution of a product by installing malware or hardware-based spying components. Symantec's 2019 Internet Security Threat Report states that supply chain attacks increased by 78 percent in 2018.
Tor, short for The Onion Router, is free and open-source software for enabling anonymous communication. It directs Internet traffic via a free, worldwide volunteer overlay network that consists of more than seven thousand relays.
Cyber spying, cyber espionage, or cyber-collection is the act or practice of obtaining secrets and information without the permission and knowledge of the holder of the information using methods on the Internet, networks or individual computers through the use of proxy servers, cracking techniques and malicious software including Trojan horses and spyware. Cyber espionage can be used to target various actors- individuals, competitors, rivals, groups, governments, and others- in order to obtain personal, economic, political or military advantages. It may wholly be perpetrated online from computer desks of professionals on bases in far away countries or may involve infiltration at home by computer trained conventional spies and moles or in other cases may be the criminal handiwork of amateur malicious hackers and software programmers.
Zeus is a Trojan horse malware package that runs on versions of Microsoft Windows. It is often used to steal banking information by man-in-the-browser keystroke logging and form grabbing. Zeus is spread mainly through drive-by downloads and phishing schemes. First identified in July 2007 when it was used to steal information from the United States Department of Transportation, it became more widespread in March 2009. In June 2009 security company Prevx discovered that Zeus had compromised over 74,000 FTP accounts on websites of such companies as the Bank of America, NASA, Monster.com, ABC, Oracle, Play.com, Cisco, Amazon, and BusinessWeek. Similarly to Koobface, Zeus has also been used to trick victims of technical support scams into giving the scam artists money through pop-up messages that claim the user has a virus, when in reality they might have no viruses at all. The scammers may use programs such as Command prompt or Event viewer to make the user believe that their computer is infected.
Malvertising is the use of online advertising to spread malware. It typically involves injecting malicious or malware-laden advertisements into legitimate online advertising networks and webpages. Because advertising content can be inserted into high-profile and reputable websites, malvertising provides malefactors an opportunity to push their attacks to web users who might not otherwise see the ads, due to firewalls, more safety precautions, or the like. Malvertising is "attractive to attackers because they 'can be easily spread across a large number of legitimate websites without directly compromising those websites'."
Lazarus Group is a hacker group made up of an unknown number of individuals, alleged to be run by the government of North Korea. While not much is known about the Lazarus Group, researchers have attributed many cyberattacks to them between 2010 and 2021. Originally a criminal group, the group has now been designated as an advanced persistent threat due to intended nature, threat, and wide array of methods used when conducting an operation. Names given by cybersecurity organizations include Hidden Cobra and ZINC or Diamond Sleet. According to North Korean defector Kim Kuk-song, the unit is internally known in North Korea as 414 Liaison Office.
Operation Torpedo was a 2011 operation in which the Federal Bureau of Investigation (FBI) compromised three different hidden services hosting child pornography, which would then target anyone who happened to access them using a network investigative technique (NIT).
Vault 7 is a series of documents that WikiLeaks began to publish on 7 March 2017, detailing the activities and capabilities of the United States Central Intelligence Agency (CIA) to perform electronic surveillance and cyber warfare. The files, dating from 2013 to 2016, include details on the agency's software capabilities, such as the ability to compromise cars, smart TVs, web browsers including Google Chrome, Microsoft Edge, Mozilla Firefox, and Opera, the operating systems of most smartphones including Apple's iOS and Google's Android, and computer operating systems including Microsoft Windows, macOS, and Linux. A CIA internal audit identified 91 malware tools out of more than 500 tools in use in 2016 being compromised by the release. The tools were developed by the Operations Support Branch of the CIA.
Playpen was a notorious darknet child pornography website that operated from August 2014 to March 2015. The website operated through the Tor network which allowed users to use the website anonymously. After running the website for 6 months, the website owner Steven W. Chase was captured by the FBI. After his capture, the FBI continued to run the website for another 13 days as part of Operation Pacifier.
Havex malware, also known as Backdoor.Oldrea, is a Remote Access Trojan (RAT) employed by the Russian attributed APT group "Energetic Bear" or "Dragonfly". Havex was discovered in 2013 and is one of five known ICS tailored malware developed in the past decade. These malwares include Stuxnet, BlackEnergy, Industroyer/CRASHOVERRIDE, and TRITON/TRISIS. Energetic Bear began utilizing Havex in a widespread espionage campaign targeting energy, aviation, pharmaceutical, defense, and petrochemical sectors. The campaign targeted victims primarily in the United States and Europe.
VPNFilter is malware designed to infect routers and certain network attached storage devices. As of 24 May 2018, it is estimated to have infected approximately 500,000 routers worldwide, though the number of at-risk devices is larger. It can steal data, contains a "kill switch" designed to disable the infected router on command, and is able to persist should the user reboot the router. The FBI believes that it was created by the Russian Fancy Bear group. In February 2022, the CISA announced that a new malware called Cyclops Blink produced by Sandworm had replaced VPNFilter.
Government hacking permits the exploitation of vulnerabilities in electronic products, especially software, to gain remote access to information of interest. This information allows government investigators to monitor user activity and interfere with device operation. Government attacks on security may include malware and encryption backdoors. The National Security Agency's PRISM program and Ethiopia's use of FinSpy are notable examples.
A web shell is a shell-like interface that enables a web server to be remotely accessed, often for the purposes of cyberattacks. A web shell is unique in that a web browser is used to interact with it.
Cisco Talos, or Cisco Talos Intelligence Group, is a cybersecurity technology and information security company based in Fulton, Maryland. It is a part of Cisco Systems Inc. Talos' threat intelligence powers Cisco Secure products and services, including malware detection and prevention systems. Talos provides Cisco customers and internet users with customizable defensive technologies and techniques through several of their own open-source products, including the Snort intrusion prevention system and ClamAV anti-virus engine.