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A  CACTUS ransomware campaign  has been observed exploiting recently disclosed security flaws in a cloud analytics and business intelligence platform called Qlik Sense to obtain a foothold into targeted environments. "This campaign marks the first documented instance [...] where threat actors deploying CACTUS ransomware have exploited vulnerabilities in Qlik Sense for initial access," Arctic Wolf researchers Stefan Hostetler, Markus Neis, and Kyle Pagelow  said . The cybersecurity company, which said it's responding to "several instances" of exploitation of the software, noted that the attacks are likely taking advantage of three flaws that have been disclosed over the past three months - CVE-2023-41265  (CVSS score: 9.9) - An HTTP Request Tunneling vulnerability that allows a remote attacker to elevate their privilege and send requests that get executed by the backend server hosting the repository application. CVE-2023-41266  (CVSS score: 6.5) - A path tr

A coalition of law enforcement agencies across Europe and the U.S.  announced  the takedown of ChipMixer, an unlicensed cryptocurrency mixer that began its operations in August 2017. "The ChipMixer software blocked the blockchain trail of the funds, making it attractive for cybercriminals looking to launder illegal proceeds from criminal activities such as drug trafficking, weapons trafficking, ransomware attacks, and payment card fraud," Europol  said  in a statement. The coordinated exercise, besides dismantling the clearnet and dark web websites associated with ChipMixer, also resulted in the seizure of $47.5 million in Bitcoin and 7 TB of data. Mixers, also called tumblers,  offer full anonymity  for a fee by commingling cryptocurrency from different users – both legitimate and criminally-derived funds – in a manner that makes it hard to trace the origins. This is achieved by funneling different payments into a single pool before splitting up each amount and transmit

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Google has won a lawsuit filed against two Russian nationals in connection with the operation of a botnet called Glupteba , the company  said  last week. The U.S. District Court for the Southern District of New York imposed monetary sanctions against the defendants and their U.S.-based legal counsel. The defendants have also been asked to pay Google's attorney fees. The defendants' move to press sanctions against Google was denied. The development comes nearly a year after the tech giant  took down  the malware's command-and-control infrastructure and initiated legal proceedings against Dmitry Starovikov and Alexander Filippov , who are said to have been in charge of running the illegal botnet. The defendants, along with 15 others, have also been accused of using the malware to create a hacked network of devices to mine cryptocurrencies, harvest victims' personal and financial data, and place disruptive ads. Gluteba is distinguished from its botnet counterparts b

Bitcoin ATM manufacturer General Bytes confirmed that it was a victim of a cyberattack that exploited a previously unknown flaw in its software to plunder cryptocurrency from its users. "The attacker was able to create an admin user remotely via CAS administrative interface via a URL call on the page that is used for the default installation on the server and creating the first administration user," the company  said  in an advisory last week. "This vulnerability has been present in CAS software since version 2020-12-08." It's not immediately clear how many servers were breached using this flaw and how much cryptocurrency was stolen. CAS is short for  Crypto Application Server , a self-hosted product from General Bytes that enables companies to manage Bitcoin ATM ( BATM ) machines from a central location via a web browser on a desktop or a mobile device. The zero-day flaw, which concerned a bug in the CAS admin interface, has been mitigated in two server p

The first ever incident possibly involving the ransomware family known as Maui occurred on April 15, 2021, aimed at an unnamed Japanese housing company. The disclosure from Kaspersky arrives a month after U.S. cybersecurity and intelligence agencies issued an  advisory  about the use of the ransomware strain by North Korean government-backed hackers to target the healthcare sector since at least May 2021. Much of the data about its modus operandi came from incident response activities and industry analysis of a Maui sample that revealed a lack of "several key features" typically associated with ransomware-as-a-service (RaaS) operations. Not only is Maui designed to be manually executed by a remote actor via a command-line interface, it's also notable for not including a ransom note to provide recovery instructions. Subsequently, the Justice Department  announced  the seizure of $500,000 worth of Bitcoin that were extorted from several organizations, including two he

The U.S. Treasury Department on Monday placed sanctions against crypto mixing service Tornado Cash, citing its use by the North Korea-backed Lazarus Group in the high-profile hacks of Ethereum bridges to launder and cash out the ill-gotten money. Tornado Cash, which allows users to move cryptocurrency assets between accounts by obfuscating their origin and destination, is estimated to have been used to launder more than $7.6 billion worth of virtual assets since its creation in 2019, the department said. Thefts, hacks, and fraud account for $1.54 billion of the total assets sent through the mixer, according to blockchain analytics firm  Elliptic . Crypto mixing is akin to shuffling digital currencies through a black box, blending a certain quantity of cryptocurrency in private pools before transferring it to its designated receivers for a fee. The aim is to make transactions anonymous and difficult to trace. "Despite public assurances otherwise, Tornado Cash has repeatedly f

A new botnet named Orchard has been observed using Bitcoin creator Satoshi Nakamoto's account transaction information to generate domain names to conceal its command-and-control (C2) infrastructure. "Because of the uncertainty of Bitcoin transactions, this technique is more unpredictable than using the common time-generated [ domain generation algorithms ], and thus more difficult to defend against," researchers from Qihoo 360's Netlab security team said in a Friday write-up. Orchard is said to have undergone three revisions since February 2021, with the botnet primarily used to deploy additional payloads onto a victim's machine and execute commands received from the C2 server. It's also designed to upload device and user information as well as infect USB storage devices to propagate the malware. Netlab's analysis shows that over 3,000 hosts have been enslaved by the malware to date, most of them located in China. Orchard has also been subjected to

The U.S. Department of Justice (DoJ) has announced the seizure of $500,000 worth of Bitcoin from North Korean hackers who extorted digital payments from several organizations by using a new ransomware strain known as Maui. "The seized funds include ransoms paid by healthcare providers in Kansas and Colorado," the DoJ  said  in a press release issued Tuesday. The recovery of the bitcoin ransoms comes after the agency said it took control of two cryptocurrency accounts that were used to receive payments to the tune of $100,000 and $120,000 from the medical centers. The DoJ did not disclose where the rest of the payments originated from. "Reporting cyber incidents to law enforcement and cooperating with investigations not only protects the United States, it is also good business," said Assistant Attorney General Matthew G. Olsen of the DoJ's National Security Division. "The reimbursement to these victims of the ransom shows why it pays to work with law en

The 8220 cryptomining group has expanded in size to encompass as many as 30,000 infected hosts, up from 2,000 hosts globally in mid-2021. "8220 Gang is one of the many low-skill crimeware gangs we continually observe infecting cloud hosts and operating a botnet and cryptocurrency miners through known vulnerabilities and remote access brute forcing infection vectors," Tom Hegel of SentinelOne  said  in a Monday report. The growth is said to have been fueled through the use of Linux and common cloud application vulnerabilities and poorly secured configurations for services such as Docker, Apache WebLogic, and Redis. Active since early 2017, the Chinese-speaking, Monero-mining threat actor was most recently  seen  targeting i686 and x86_64 Linux systems by means of weaponizing a newly disclosed remote code execution exploit for Atlassian Confluence Server (CVE-2022-26134) to drop the PwnRig miner payload. "Victims are not targeted geographically, but simply identifie

An illicit online marketplace known as SSNDOB was taken down in operation led by U.S. law enforcement agencies, the Department of Justice (DoJ) announced Tuesday. SSNDOB trafficked in personal information such as names, dates of birth, credit card numbers, and Social Security numbers of about 24 million individuals in the U.S., generating its operators $19 million in sales revenue. The action saw the seizure of several domains associated with the marketplace — ssndob.ws, ssndob.vip, ssndob.club, and blackjob.biz — in cooperation with authorities from Cyprus and Latvia. According to blockchain analytics firm  Chainalysis , SSNDOB's Bitcoin payment processing system has received nearly $22 million worth of Bitcoin across over 100,000 transactions since April 2015. Furthermore, bitcoin transfers to the tune of more than $100,000 have been unearthed between SSNDOB and  Joker's Stash , another darknet market that specialized in stolen credit card information and voluntarily c

Germany's Federal Criminal Police Office, the Bundeskriminalamt (BKA), on Tuesday announced the official takedown of Hydra, the world's largest illegal dark web marketplace that has cumulatively facilitated over $5 billion in Bitcoin transactions to date. "Bitcoins amounting to currently the equivalent of approximately €23 million were seized, which are attributed to the marketplace," the BKA said in a press release. Blockchain analytics firm Elliptic confirmed that the seizure occurred on April 5, 2022 in a series of 88 transactions totaling 543.3 BTC. The agency attributed the shutdown of Hydra to an extensive investigation operation conducted by its Central Office for Combating Cybercrime (ZIT) in partnership with U.S. law enforcement authorities that it said had been underway since August 2021. Launched in 2015, Hydra was a Russian-language darknet marketplace that opened as a competitor to the now-defunct Russian Anonymous Marketplace (aka RAMP), primarily

A new version of the MyloBot malware has been observed to deploy malicious payloads that are being used to send sextortion emails demanding victims to pay $2,732 in digital currency. MyloBot , first detected in 2018, is known to  feature  an array of sophisticated anti-debugging capabilities and propagation techniques to rope infected machines into a botnet, not to mention remove traces of other competing malware from the systems. Chief among its methods to evade detection and stay under the radar included a delay of 14 days before accessing its command-and-control servers and the facility to execute malicious binaries directly from memory. MyloBot also leverages a technique called  process hollowing , wherein the attack code is injected into a suspended and hollowed process in order to circumvent process-based defenses. This is achieved by unmapping the memory allocated to the live process and replacing it with the arbitrary code to be executed, in this case a decoded resource fi

The U.S. Justice Department (DoJ) on Tuesday  announced  the arrest of a married couple in connection with conspiring to launder cryptocurrency worth $4.5 billion that was siphoned during the  hack  of the virtual currency exchange Bitfinex in 2016. Ilya Lichtenstein, 34, and his wife, Heather Morgan, 31, both of New York, are alleged to have "stolen funds through a labyrinth of cryptocurrency transactions," with the law enforcement getting hold of over $3.6 billion in cryptocurrency by following the money trails, resulting in the "largest financial seizure ever." Prosecutors charged the couple not for the hack itself, but rather for receiving the stolen bitcoin into a digital wallet under their ownership, a part of which was laundered to conceal the activities and the movement of the money. In 2019, Israeli authorities apprehended two brothers, Eli and Assaf Gigi, over their supposed involvement in the 2016 security breach. "Bitfinex will work with the Do

Google on Tuesday said it took steps to disrupt the operations of a sophisticated "multi-component" botnet called Glupteba that approximately infected more than one million Windows computers across the globe and stored its command-and-control server addresses on Bitcoin's blockchain as a resilience mechanism. As part of the efforts, Google's Threat Analysis Group (TAG) said it partnered with the CyberCrime Investigation Group over the past year to terminate around 63 million Google Docs that were observed to have distributed the malware, alongside 1,183 Google Accounts, 908 Cloud Projects, and 870 Google Ads accounts that were associated with its distribution. Google TAG further said it worked with internet infrastructure providers and hosting providers, such as Cloudflare, to dismantle the malware by taking down servers and placing interstitial warning pages in front of the malicious domains. In tandem, the internet giant also announced a lawsuit against two Russ

Network-attached storage (NAS) appliance maker QNAP on Tuesday released a new advisory warning of a cryptocurrency mining malware targeting its devices, urging customers to take preventive steps with immediate effect. "A bitcoin miner has been reported to target QNAP NAS. Once a NAS is infected, CPU usage becomes unusually high where a process named '[oom_reaper]' could occupy around 50% of the total CPU usage," the Taiwanese company  said  in an alert. "This process mimics a kernel process but its [process identifier] is usually greater than 1000." QNAP said it's currently investigating the infections, but did not share more information on the initial access vector that's being used to compromise the NAS devices. Affected users can remove the malware by restarting the appliances. In the interim, the company is recommending that users update their QTS (and QuTS Hero) operating systems to the latest version, enforce strong passwords for administr

The U.S. Treasury Department on Tuesday imposed sanctions on Russian cryptocurrency exchange Suex for helping facilitate and launder transactions from at least eight ransomware variants as part of the government's efforts to crack down on a surge in ransomware incidents and make it difficult for bad actors to profit from such attacks using digital currencies. "Virtual currency exchanges such as SUEX are critical to the profitability of ransomware attacks, which help fund additional cybercriminal activity," the department  said  in a press release. "Analysis of known SUEX transactions shows that over 40% of SUEX's known transaction history is associated with illicit actors. SUEX is being designated pursuant to  Executive Order 13694 , as amended, for providing material support to the threat posed by criminal ransomware actors." According to blockchain analytics firm  Chainalysis , SUEX is legally registered in the Czech Republic and operates out of office

Hackers have siphoned $611 million worth of cryptocurrencies from a blockchain-based financial network in what's believed to be one of the largest heists targeting the digital asset industry, putting it ahead of breaches targeting exchanges Coincheck and Mt. Gox in recent years. Poly Network, a China-based cross-chain decentralized finance (DeFi) platform for swapping tokens across multiple blockchains such as Bitcoin and Ethereum, on Tuesday  disclosed  unidentified actors had exploited a vulnerability in its system to plunder thousands of digital tokens such as Ether. "The hacker exploited a vulnerability between contract calls," Poly Network said.  The stolen Binance Chain, Ethereum, and Polygon assets are said to have been transferred to three different wallets, with the company urging miners of affected blockchain and centralized crypto exchanges to blocklist tokens coming from the addresses. The three wallet addresses are as follows -  Ethereum: 0xC8a65Fadf

Among the problems stemming from our systemic failure with cybersecurity, which ranges from decades-old software-development practices to Chinese and Russian cyber-attacks, one problem gets far less attention than it should—the insider threat. But the reality is that most organizations should be at least as worried about user management as they are about Bond villain-type hackers launching compromises from abroad. Most organizations have deployed single sign-on and modern identity-management solutions. These generally allow easy on-boarding, user management, and off-boarding. However, on mobile devices, these solutions have been less effective. Examples include mobile applications such as WhatsApp, Signal, Telegram, or even SMS-which are common in the workforce. All of these tools allow for low-friction, agile communication in an increasingly mobile business environment. Today, many of these tools offer end-to-end encryption (e2ee), which is a boon when viewed through the lens of