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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...