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A trio of offshoots from the notorious Conti cybercrime cartel have resorted to the technique of call back phishing as an initial access vector to breach targeted networks. "Three autonomous threat groups have since adopted and independently developed their own targeted phishing tactics derived from the call back phishing methodology," cybersecurity firm AdvIntel  said  in a Wednesday report. These targeted campaigns "substantially increased" attacks against entities in finance, technology, legal, and insurance sectors, the company added. The actors in question include Silent Ransom, Quantum, and Roy/Zeon, all of which split from Conti after the ransomware-as-a-service (RaaS) cartel  orchestrated its shutdown  in May 2022 following its public support for Russia in the ongoing Russo-Ukrainian conflict. The advanced social engineering tactic, also called  BazaCall  (aka BazarCall), came under the spotlight in 2020/2021 when it was put to use by operators of the

Networking equipment major Cisco on Wednesday confirmed it was the victim of a cyberattack on May 24, 2022 after the attackers got hold of an employee's personal Google account that contained passwords synced from their web browser. "Initial access to the Cisco VPN was achieved via the successful compromise of a Cisco employee's personal Google account," Cisco Talos  said  in a detailed write-up. "The user had enabled password syncing via Google Chrome and had stored their Cisco credentials in their browser, enabling that information to synchronize to their Google account." The disclosure comes as cybercriminal actors associated with the Yanluowang ransomware gang  published a list of files  from the breach to their data leak site on August 10. The exfiltrated information, according to Talos, included the contents of a Box cloud storage folder that was associated with the compromised employee's account and is not believed to have included any valuabl

Over the past two years, a shocking  51% of organizations surveyed in a leading industry report have been compromised by a cyberattack.  Yes, over half.  And this, in a world where enterprises deploy  an average of 53 different security solutions  to safeguard their digital domain.  Alarming? Absolutely. A recent survey of CISOs and CIOs, commissioned by Pentera and conducted by Global Surveyz Research, offers a quantifiable glimpse into this evolving battlefield, revealing a stark contrast between the growing risks and the tightening budget constraints under which cybersecurity professionals operate. With this report, Pentera has once again taken a magnifying glass to the state of pentesting to release its annual report about today's pentesting practices. Engaging with 450 security executives from North America, LATAM, APAC, and EMEA—all in VP or C-level positions at organizations with over 1,000 employees—the report paints a current picture of modern security validation prac

Threat actors associated with the Cuba ransomware have been linked to previously undocumented tactics, techniques and procedures (TTPs), including a new remote access trojan called ROMCOM RAT on compromised systems. The  new findings  come from Palo Alto Networks' Unit 42 threat intelligence team, which is tracking the double extortion ransomware group under the  constellation-themed moniker   Tropical Scorpius . Cuba ransomware (aka  COLDDRAW ), which was first detected in December 2019, reemerged on the threat landscape in November 2021 and has been attributed to attacks against 60 entities in five critical infrastructure sectors, amassing at least $43.9 million in ransom payments. Of the 60 victims listed on its data leak site, 40 are located in the U.S., indicating a not as global distribution of targeted organizations as other ransomware gangs. "Cuba ransomware is distributed through Hancitor malware, a loader known for dropping or executing stealers, such as Remote

Ransomware is a kind of malware used by cybercriminals to stop users from accessing their systems or files; the cybercriminals then threaten to leak, destroy or withhold sensitive information unless a ransom is paid. Ransomware attacks can target either the data held on computer systems (known as locker ransomware) or devices (crypto-ransomware). In both instances, once a ransom is paid, threat actors typically provide victims with a decryption key or tool to unlock their data or device, though this is not guaranteed. Oliver Pinson-Roxburgh, CEO of  Defense.com , the all-in-one cybersecurity platform, shares knowledge and advice in this article on how ransomware works, how damaging it can be, and how your business can mitigate ransomware attacks from occurring. What does a ransomware attack comprise? There are three key elements to a ransomware attack: Access In order to deploy malware to encrypt files and gain control, cybercriminals need to initially gain access to an organiza

A threat actor associated with the LockBit 3.0 ransomware-as-a-service (RaaS) operation has been observed abusing the Windows Defender command-line tool to decrypt and load Cobalt Strike payloads.  According to a report published by SentinelOne last week, the incident occurred after obtaining initial access via the  Log4Shell vulnerability  against an unpatched VMware Horizon Server. "Once initial access had been achieved, the threat actors performed a series of enumeration commands and attempted to run multiple post-exploitation tools, including Meterpreter, PowerShell Empire, and a new way to side-load Cobalt Strike," researchers Julio Dantas, James Haughom, and Julien Reisdorffer  said . LockBit 3.0 (aka LockBit Black), which comes with the tagline "Make Ransomware Great Again!," is the  next iteration  of the prolific  LockBit RaaS family  that emerged in June 2022 to iron out  critical weaknesses  discovered in its predecessor. It's notable for insti

Cybersecurity researchers have reiterated similarities between the latest iteration of the LockBit ransomware and  BlackMatter , a rebranded variant of the DarkSide ransomware strain that closed shop in November 2021. The new version of  LockBit , called LockBit 3.0 aka LockBit Black, was released in June 2022, launching a brand new leak site and what's the very first ransomware bug bounty program, alongside Zcash as a cryptocurrency payment option. Its encryption process involves appending the extension "HLJkNskOq" or "19MqZqZ0s" to each and every file and changing the icons of the locked files to that of the .ico file that's dropped by the LockBit sample to kick-start the infection. "The ransomware then drops its ransom note, which references 'Ilon Musk' and the European Union's General Data Protection Regulation (GDPR)," Trend Micro researchers  said  in a Monday report. "Lastly, it changes the wallpaper of the victim's

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

Kaspersky security researchers have disclosed details of a brand-new ransomware family written in Rust, making it the third strain after  BlackCat  and  Hive  to use the programming language. Luna, as it's called, is "fairly simple" and can run on Windows, Linux, and ESXi systems, with the malware banking on a combination of  Curve25519  and  AES  for encryption. "Both the Linux and ESXi samples are compiled using the same source code with some minor changes from the Windows version," the Russian firm  noted  in a report published today. Advertisements for Luna on darknet forums suggest that the ransomware is intended for use only by Russian-speaking affiliates. Its core developers are also believed to be of Russian origin owing to spelling mistakes in the ransom note hard-coded within the binary. "Luna confirms the trend for cross-platform ransomware," the researchers stated, adding how the platform agnostic nature of languages like Golang and R

LockBit ransomware attacks are constantly evolving by making use of a wide range of techniques to infect targets while also taking steps to disable endpoint security solutions. "The affiliates that use LockBit's services conduct their attacks according to their preference and use different tools and techniques to achieve their goal," Cybereason security analysts Loïc Castel and Gal Romano  said . "As the attack progresses further along the kill chain, the activities from different cases tend to converge to similar activities." LockBit, which operates on a ransomware-as-a-service (RaaS) model like most groups, was first observed in September 2019 and has since emerged as the most dominant ransomware strain this year, surpassing other well-known groups like  Conti ,  Hive , and  BlackCat . This involves the malware authors licensing access to affiliates, who execute the attacks in exchange for using their tools and infrastructure and earn as much as 80% of ea

In a new joint cybersecurity advisory, U.S. cybersecurity and intelligence agencies have warned about the use of Maui ransomware by North Korean government-backed hackers to target the healthcare sector since at least May 2021. "North Korean state-sponsored cyber actors used Maui ransomware in these incidents to encrypt servers responsible for healthcare services—including electronic health records services, diagnostics services, imaging services, and intranet services," the authorities  noted . The  alert  comes courtesy of the U.S. Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Department of the Treasury. Cybersecurity firm Stairwell, whose findings formed the basis of the advisory, said the lesser-known ransomware family stands out because of a lack of several key features commonly associated with ransomware-as-a-service (RaaS) groups. This includes the absence of "embedded ransom note to provide recov

The operators of the Hive ransomware-as-a-service (RaaS) scheme have overhauled their file-encrypting software to fully migrate to Rust and adopt a more sophisticated encryption method. "With its latest variant carrying several major upgrades, Hive also proves it's one of the fastest evolving ransomware families, exemplifying the continuously changing ransomware ecosystem," Microsoft Threat Intelligence Center (MSTIC)  said  in a report on Tuesday. Hive , which was first observed in June 2021, has emerged as one of the most prolific RaaS groups,  accounting  for 17 attacks in the month of May 2022 alone, alongside  Black Basta and Conti . The shift from GoLang to Rust makes Hive the second ransomware strain after  BlackCat  to be written in the programming language, enabling the malware to gain additional benefits such as memory safety and deeper control over low-level resources as well as make use of a wide range of cryptographic libraries. What it also affords is

Change is a part of life, and nothing stays the same for too long, even with hacking groups, which are at their most dangerous when working in complete silence. The notorious REvil  ransomware  gang, linked to the infamous JBS and Kaseya, has resurfaced three months after the arrest of its members in Russia. The Russian domestic intelligence service, the FSB, had caught 14 people from the gang. In this apprehension, the 14 members of the gang were found in possession of 426 million roubles, $600,000, 500,000 euros, computer equipment, and 20 luxury cars were brought to justice. REvil Ransomware Gang- The Context The financially-motivated cybercriminal threat group Gold Southfield controlled ransomware group known as REvil emerged in 2019 and spread like wildfire after extorting $11 million from the meat-processor JBS. REvil would incentivize its affiliates to carry out cyberattacks for them by giving a percentage of the ransom pay-outs to those who help with infiltration activitie

Cybersecurity researchers have detailed the various measures ransomware actors have taken to obscure their true identity online as well as the hosting location of their web server infrastructure. "Most ransomware operators use hosting providers outside their country of origin (such as Sweden, Germany, and Singapore) to host their ransomware operations sites," Cisco Talos researcher Paul Eubanks  said . "They use VPS hop-points as a proxy to hide their true location when they connect to their ransomware web infrastructure for remote administration tasks." Also prominent are the use of the TOR network and DNS proxy registration services to provide an added layer of anonymity for their illegal operations. But by taking advantage of the threat actors' operational security missteps and other techniques, the cybersecurity firm disclosed last week that it was able to identify TOR hidden services hosted on public IP addresses, some of which are previously unknown in