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Threat actors are exploiting poorly secured Microsoft SQL (MS SQL) servers to deliver Cobalt Strike and a ransomware strain called FreeWorld. Cybersecurity firm Securonix, which has dubbed the campaign DB#JAMMER , said it stands out for the way the toolset and infrastructure is employed. "Some of these tools include enumeration software, RAT payloads, exploitation and credential stealing software, and finally ransomware payloads," security researchers Den Iuzvyk, Tim Peck, and Oleg Kolesnikov said in a technical breakdown of the activity. "The ransomware payload of choice appears to be a newer variant of Mimic ransomware called FreeWorld." Initial access to the victim host is achieved by brute-forcing the MS SQL server, using it to enumerate the database and leveraging the xp_cmdshell configuration option to run shell commands and conduct reconnaissance. The next stage entails taking steps to impair system firewall and establish persistence by connecting to a remote SMB share...

Cybersecurity and intelligence agencies from Australia, Canada, New Zealand, the U.K., and the U.S. on Thursday disclosed details of a mobile malware strain targeting Android devices used by the Ukrainian military. The malicious software, dubbed  Infamous Chisel  and attributed to a Russian state-sponsored actor called Sandworm, has  capabilities  to "enable unauthorized access to compromised devices, scan files, monitor traffic, and periodically steal sensitive information." Some aspects of the malware were  uncovered  by the Security Service of Ukraine (SBU) earlier in August, highlighting unsuccessful attempts on part of the adversary to penetrate Ukrainian military networks and gather valuable intelligence. It's said that Russian forces captured tablets used by Ukraine on the battlefield, using them as a foothold to remotely disseminate the malware to other devices by using the Android Debug Bridge ( ADB ) command-line tool. Sandworm, also known b...

A new phishing attack likely targeting civil society groups in South Korea has led to the discovery of a novel remote access trojan called  SuperBear . The intrusion singled out an unnamed activist, who was contacted in late August 2023 and received a malicious LNK file from an address impersonating a member of the organization, non-profit entity Interlabs  said  in a new report. The LNK file, upon execution, launches a PowerShell command to execute a Visual Basic script that, in turn, fetches the next-stage payloads from a legitimate but compromised WordPress website. This includes the Autoit3.exe binary ("solmir.pdb") and an AutoIt script ("solmir_1.pdb") that's launched using the former. The AutoIt script, for its part, performs process injection using a  process hollowing technique , in which malicious code is inserted into a process that's in a suspended state. In this case, an instance of Explorer.exe is spawned to inject a never-before-seen RAT referred...

As cyber threats continue to evolve, adversaries are deploying a range of tools to breach security defenses and compromise sensitive data. Surprisingly, one of the most potent weapons in their arsenal is not malicious code but simply stolen or weak usernames and passwords. This article explores the seriousness of compromised credentials, the challenges they present to security solutions, and the importance of implementing robust measures to protect Active Directory (AD) environments. Additionally, we introduce Silverfort Unified Identity Protection , a comprehensive solution that offers enhanced security for AD environments against the misuse of compromised credentials. The Power of Stolen Credentials: Full Access to Any Resource  In the world of cyberattacks, stolen usernames and passwords are a highly effective means of gaining unauthorized access to networks and systems. They grant adversaries an entry point, allowing them subsequent access to sensitive on-prem and cloud reso...

The Classiscam scam-as-a-service program has reaped the criminal actors $64.5 million in illicit earnings since its emergence in 2019. "Classiscam campaigns initially started out on classified sites, on which scammers placed fake advertisements and used social engineering techniques to convince users to pay for goods by transferring money to bank cards," Group-IB  said  in a new report. "Since then, Classiscam campaigns have become highly automated, and can be run on a host of other services, such as online marketplaces and carpooling sites." A majority of victims are based in Europe (62.2%), followed by the Middle East and Africa (18.2%), and the Asia-Pacific (13%). Germany, Poland, Spain, Italy, and Romania accounted for the highest number of fraudulent transactions registered in Classiscam chats.  First discovered in 2019, Classiscam is an  umbrella term  for an operation that encompasses 1,366 distinct groups on Telegram. The activities first targeted R...

An open-source .NET-based information stealer malware dubbed  SapphireStealer  is being used by multiple entities to enhance its capabilities and spawn their own bespoke variants. "Information-stealing malware like SapphireStealer can be used to obtain sensitive information, including corporate credentials, which are often resold to other threat actors who leverage the access for additional attacks, including operations related to espionage or ransomware/extortion," Cisco Talos researcher Edmund Brumaghin  said  in a report shared with The Hacker News. An entire ecosystem has developed over time that allows both financially motivated and nation-state actors to use services from purveyors of stealer malware to carry out various kinds of attacks. Viewed in that light, such malware not only represents an evolution of the cybercrime-as-a-service (CaaS) model, they also offer other threat actors to monetize the stolen data to distribute ransomware, conduct data theft,...

Three additional rogue Python packages have been discovered in the Package Index (PyPI) repository as part of an ongoing malicious software supply chain campaign called  VMConnect , with signs pointing to the involvement of North Korean state-sponsored threat actors. The  findings  come from ReversingLabs, which detected the packages tablediter, request-plus, and requestspro. First disclosed at the start of the month by the company and Sonatype,  VMConnect  refers to a collection of Python packages that mimic popular open-source Python tools to download an unknown second-stage malware. The latest tranche is no different, with ReversingLabs noting that the bad actors are disguising their packages and making them appear trustworthy by using typosquatting techniques to impersonate prettytable and requests and confuse developers. The nefarious code within tablediter is designed to run in an endless execution loop in which a remote server is polled periodically ...

How often do cyberattacks happen? How frequently do threat actors target businesses and governments around the world? The BlackBerry® Threat Research and Intelligence Team recently analyzed 90 days of real-world data to answer these questions. Full results are in the latest BlackBerry  Global Threat Intelligence Report , but read on for a teaser of several interesting cyber attack statistics. Analyzing Real-World Cyberattacks In their most recent quarterly report, BlackBerry threat researchers analyzed the onslaught of malware-based attacks from December 2022 to February 2023. During that time, BlackBerry's AI-powered endpoint protection solution, detected and blocked a total of  1,578,733  malware-based cyberattacks targeting customers. 90 Days of Cyberattacks Based on analysis of cyberattacks detected and blocked during the 90-day window, the BlackBerry Threat Research and Intelligence Team recorded the following statistics: Total number of malware-based attacks:...

A hacking outfit nicknamed  Earth Estries  has been attributed to a new, ongoing cyber espionage campaign targeting government and technology industries based in the Philippines, Taiwan, Malaysia, South Africa, Germany, and the U.S. "The threat actors behind Earth Estries are working with high-level resources and functioning with sophisticated skills and experience in cyber espionage and illicit activities," Trend Micro researchers Ted Lee, Lenart Bermejo, Hara Hiroaki, Leon M Chang, and Gilbert Sison  said . Active since at least 2020, Earth Estries is said to share tactical overlaps with another nation-state group tracked as  FamousSparrow , which was first exposed by ESET in 2021 as exploiting ProxyLogon flaws in Microsoft Exchange Server to penetrate hospitality, government, engineering, and legal sectors. It's worth pointing out that commonalities have also been unearthed between FamousSparrow and  UNC4841 , an uncategorized activity cluster held respo...

New findings show that malicious actors could leverage a sneaky malware detection evasion technique and bypass endpoint security solutions by manipulating the Windows Container Isolation Framework. The findings were presented by Deep Instinct security researcher Daniel Avinoam at the  DEF CON security conference  held earlier this month. Microsoft's  container architecture  (and by extension,  Windows Sandbox ) uses what's called a  dynamically generated image  to separate the file system from each container to the host and at the same time avoid duplication of system files. It's nothing but an "operating system image that has clean copies of files that can change, but links to files that cannot change that are in the Windows image that already exists on the host," thereby bringing down the overall size for a full OS. "The result is images that contain 'ghost files,' which store no actual data but point to a different volume on the system,"...

A previously undocumented Android banking trojan dubbed  MMRat  has been observed targeting mobile users in Southeast Asia since late June 2023 to remotely commandeer the devices and perform financial fraud. "The malware, named after its distinctive package name com.mm.user, can capture user input and screen content, and can also remotely control victim devices through various techniques, enabling its operators to carry out bank fraud on the victim's device," Trend Micro  said . What makes MMRat stand apart from others of its kind is the use of a customized command-and-control (C2) protocol based on protocol buffers (aka  protobuf ) to efficiently transfer large volumes of data from compromised handsets, demonstrating the growing sophistication of Android malware. Possible targets based on the language used in the phishing pages include Indonesia, Vietnam, Singapore, and the Philippines. The entry point of the attacks is a network of phishing sites that mimic o...

Cybersecurity researchers have discovered malicious Android apps for Signal and Telegram distributed via the Google Play Store and Samsung Galaxy Store that are engineered to deliver the BadBazaar spyware on infected devices. Slovakian company ESET attributed the campaign to a China-linked actor called  GREF . "Most likely active since July 2020 and since July 2022, respectively, the campaigns have distributed the Android BadBazaar espionage code through the Google Play store, Samsung Galaxy Store, and dedicated websites representing the malicious apps Signal Plus Messenger and FlyGram," security researcher Lukáš Štefanko  said  in a new report shared with The Hacker News. Victims have been primarily detected in Germany, Poland, and the U.S., followed by Ukraine, Australia, Brazil, Denmark, Congo-Kinshasa, Hong Kong, Hungary, Lithuania, the Netherlands, Portugal, Singapore, Spain, and Yemen. BadBazaar was  first documented  by Lookout in November 2022 as ta...

ChatGPT and similar large language models (LLMs) have added further complexity to the ever-growing online threat landscape. Cybercriminals no longer need advanced coding skills to execute fraud and other damaging attacks against online businesses and customers, thanks to bots-as-a-service, residential proxies, CAPTCHA farms, and other easily accessible tools.  Now, the latest technology damaging businesses' bottom line is  ChatGPT . Not only have ChatGPT, OpenAI, and other LLMs raised ethical issues by  training their models  on scraped data from across the internet. LLMs are negatively impacting enterprises' web traffic, which can be extremely damaging to business.  3 Risks Presented by LLMs, ChatGPT, & ChatGPT Plugins Among the threats ChatGPT and ChatGPT plugins can pose against online businesses, there are three key risks we will focus on: Content theft  (or republishing data without permission from the original source)can hurt the authority,...

An unknown threat actor is leveraging malicious npm packages to target developers with an aim to steal source code and configuration files from victim machines, a sign of how threats lurk consistently in open-source repositories. "The threat actor behind this campaign has been linked to malicious activity dating back to 2021," software supply chain security firm Checkmarx  said  in a report shared with The Hacker News. "Since then, they have continuously published malicious packages." The latest report is a continuation of the  same campaign  that Phylum disclosed at the start of the month in which a number of npm modules were engineered to exfiltrate valuable information to a remote server. The packages, by design, are configured to execute immediately post-installation by means of a postinstall hook defined in the package.json file. It triggers the launch of preinstall.js, which spawns index.js to capture the system metadata as well as harvest source code and...