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Citrix is  alerting  users of a critical security flaw in NetScaler Application Delivery Controller (ADC) and Gateway that it said is being actively exploited in the wild. Tracked as  CVE-2023-3519  (CVSS score: 9.8), the issue relates to a case of  code injection  that could result in unauthenticated remote code execution. It impacts the following versions - NetScaler ADC and NetScaler Gateway 13.1 before 13.1-49.13 NetScaler ADC and NetScaler Gateway 13.0 before 13.0-91.13 NetScaler ADC and NetScaler Gateway version 12.1 (currently end-of-life) NetScaler ADC 13.1-FIPS before 13.1-37.159 NetScaler ADC 12.1-FIPS before 12.1-55.297, and NetScaler ADC 12.1-NDcPP before 12.1-55.297 The company did not give further details on the flaw tied to CVE-2023-3519 other than to say that exploits for the flaw have been observed on "unmitigated appliances." However, successful exploitation requires the device to be configured as a Gateway (VPN virtual server, ...

An unidentified threat actor compromised an application used by multiple entities in Pakistan to deliver  ShadowPad , a successor to the PlugX backdoor that's commonly associated with  Chinese hacking crews . Targets included a Pakistan government entity, a public sector bank, and a telecommunications provider, according to Trend Micro. The infections took place between mid-February 2022 and September 2022. The cybersecurity company said the incident could be the result of a supply-chain attack, in which a legitimate piece of software used by targets of interest is trojanized to deploy malware capable of gathering sensitive information from compromised systems. The attack chain takes the form of a malicious installer for  E-Office , an application developed by the National Information Technology Board (NITB) of Pakistan to help government departments go paperless. It's currently not clear how the backdoored E-Office installer was delivered to the targets. That said, ...

Data associated with a subset of registered customers of VirusTotal, including their names and email addresses, were exposed after an employee inadvertently uploaded the information to the malware scanning platform. The security incident, which comprises a database of 5,600 names in a 313KB file, was first disclosed by  Der Spiegel  and  Der Standard  yesterday. Launched in 2004, VirusTotal is a popular service that analyzes suspicious files and URLs to detect types of malware and malicious content using antivirus engines and website scanners. It was acquired by Google in 2012 and became a subsidiary of Google Cloud's Chronicle unit in 2018. When reached for comment, Google confirmed the leak and said it took immediate steps to remove the data. "We are aware of the unintentional distribution of a small segment of customer group administrator emails and organization names by one of our employees on the VirusTotal platform," a Google Cloud spokesperson told The Ha...

Discover stories about threat actors’ latest tactics, techniques, and procedures from Cybersixgill’s threat experts each month. Each story brings you details on emerging underground threats, the threat actors involved, and how you can take action to mitigate risks. Learn about the top vulnerabilities and review the latest ransomware and malware trends from the deep and dark web. Stolen ChatGPT credentials flood dark web markets Over the past year, 100,000 stolen credentials for ChatGPT were advertised on underground sites, being sold for as little as $5 on dark web marketplaces in addition to being offered for free. Stolen ChatGPT credentials include usernames, passwords, and other personal information associated with accounts. This is problematic because ChatGPT accounts may store sensitive information from queries, including confidential data and intellectual property. Specifically, companies increasingly incorporate ChatGPT into daily workflows, which means employees may disclose ...

The financially motivated threat actor known as FIN8 has been observed using a "revamped" version of a backdoor called  Sardonic  to deliver the  BlackCat ransomware . According to the Symantec Threat Hunter Team, part of Broadcom, the development is an attempt on the part of the e-crime group to diversify its focus and maximize profits from infected entities. The intrusion attempt took place in December 2022. FIN8 is being tracked by the cybersecurity company under the name Syssphinx. Known to be active since at least 2016, the adversary was originally attributed to attacks targeting point-of-sale (PoS) systems using malware such as PUNCHTRACK and BADHATCH. The group resurfaced after more than a year in March 2021 with an updated version of BADHATCH, following it up with a completely new bespoke implant called Sardonic , which was disclosed by Bitdefender in August 2021. "The C++-based Sardonic backdoor has the ability to harvest system information and execute c...