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A pro-Hamas threat actor known as  Gaza Cyber Gang  is targeting Palestinian entities using an updated version of a backdoor dubbed Pierogi. The findings come from SentinelOne, which has given the malware the name Pierogi++ owing to the fact that it's implemented in the C++ programming language unlike its Delphi- and Pascal-based predecessor. "Recent Gaza Cybergang activities show consistent targeting of Palestinian entities, with no observed significant changes in dynamics since the start of the Israel-Hamas war," security researcher Aleksandar Milenkoski  said  in a report shared with The Hacker News. Gaza Cyber Gang, believed to be  active since at least  2012, has a history of striking targets throughout the Middle East, particularly Israel and Palestine, often leveraging spear-phishing as a method of initial access. Some of the  notable   malware   families  in its  arsenal   include  BarbWire, DropBook, LastCon...

The Iranian state-sponsored threat actor known as  OilRig  deployed three different downloader malware throughout 2022 to maintain persistent access to victim organizations located in Israel. The three new downloaders have been named ODAgent, OilCheck, and OilBooster by Slovak cybersecurity company ESET. The attacks also involved the use of an updated version of a known OilRig downloader dubbed  SampleCheck5000  (or SC5k). "These lightweight downloaders [...] are notable for using one of several legitimate cloud service APIs for [command-and-control] communication and data exfiltration: the Microsoft Graph OneDrive or Outlook APIs, and the Microsoft Office Exchange Web Services (EWS) API," security researchers Zuzana Hromcová and Adam Burgher  said  in a report shared with The Hacker News. By using well-known cloud service providers for command-and-control communication, the goal is to blend with authentic network traffic and cover up the group's attack...

Network penetration testing plays a crucial role in protecting businesses in the ever-evolving world of cybersecurity. Yet, business leaders and IT pros have misconceptions about this process, which impacts their security posture and decision-making.  This blog acts as a quick guide on network penetration testing, explaining what it is, debunking common myths and reimagining its role in today's security landscape.  What is network penetration testing? Network penetration testing  is a proactive approach to cybersecurity in which security experts simulate cyberattacks to identify gaps in an organization's cyberdefense. The key objective of this process is to identify and rectify weaknesses before hackers can exploit them. This process is sometimes called "pentesting" or "ethical hacking."  Network pentesting checks for chinks in an organization's armor to help mitigate cyber-risks and protect against data, financial and reputational losses.  Differe...

Threat actors affiliated with the Russian Foreign Intelligence Service (SVR) have targeted unpatched JetBrains TeamCity servers in widespread attacks since September 2023. The activity has been tied to a nation-state group known as  APT29 , which is also tracked as BlueBravo, Cloaked Ursa, Cozy Bear, Midnight Blizzard (formerly Nobelium), and The Dukes. It's notable for the supply chain attack  targeting SolarWinds  and its customers in 2020. "The SVR has, however, been observed using the initial access gleaned by exploiting the TeamCity CVE to escalate its privileges, move laterally, deploy additional backdoors, and take other steps to ensure persistent and long-term access to the compromised network environments," cybersecurity agencies from Poland, the U.K., and the U.S.  said . The vulnerability in question is  CVE-2023-42793  (CVSS score: 9.8), a critical security flaw that could be weaponized by unauthenticated attackers to achieve remote code exe...

A previously unknown hacker outfit called  GambleForce  has been attributed to a series of SQL injection attacks against companies primarily in the Asia-Pacific (APAC) region since at least September 2023. "GambleForce uses a set of basic yet very effective techniques, including SQL injections and the exploitation of vulnerable website content management systems (CMS) to steal sensitive information, such as user credentials," Singapore-headquartered Group-IB  said  in a report shared with The Hacker News. The group is estimated to have targeted 24 organizations in the gambling, government, retail, and travel sectors across Australia, Brazil, China, India, Indonesia, the Philippines, South Korea, and Thailand. Six of these attacks were successful. The modus operandi of GambleForce is its exclusive reliance on open-source tools like dirsearch , sqlmap , tinyproxy , and redis-rogue-getshell at different stages of the attacks with the ultimate goal of exfiltrating ...