Security News
A number of government-backed APTs are exploiting CVE-2023-38831, a file extension spoofing vulnerability in WinRAR, a widely used file archiver utility for Windows. "The widespread exploitation of the WinRAR bug highlights that exploits for known vulnerabilities can be highly effective, despite a patch being available," Google TAG analysts have noted.
An analysis of the indicators of compromise associated with the JumpCloud hack has uncovered evidence pointing to the involvement of North Korean state-sponsored groups, in a style that's reminiscent of the supply chain attack targeting 3CX. The findings come from SentinelOne, which mapped out the infrastructure pertaining to the intrusion to uncover underlying patterns. "The North Korean threat actors demonstrate a high level of creativity and strategic awareness in their targeting strategies," SentinelOne security researcher Tom Hegel told The Hacker News.
Microsoft on Wednesday took the lid off a "Novel and distinct Russian threat actor," which it said is linked to the General Staff Main Intelligence Directorate and has a "Relatively low success rate." The tech giant's Threat Intelligence team, which was previously tracking the group under its emerging moniker DEV-0586, has graduated it to a named actor dubbed Cadet Blizzard.
A change in the deployment of the RomCom malware strain has illustrated the blurring distinction between cyberattacks motivated by money and those fueled by geopolitics, in this case Russia's illegal invasion of Ukraine, according to Trend Micro analysts. The infosec vendor pointed out that RomCom's operators, threat group Void Rabisu, also has links to the notorious Cuba ransomware, and therefore assessed it was assumed to be a financially driven criminal organization.
The threat actor uses a custom implant to compromise a specific TP-Link router model and steal information from it, as well as provide backdoor access to the attackers. "Horse Shell" implant found in TP-Link router firmware.
A Chinese state-sponsored APT group implanted malicious firmware into TP-Link routers as part of attack campaigns aimed at European foreign affairs entities, say Check Point researchers. The malicious firmware was exclusively created for TP-Link routers.
Cybersecurity researchers have unearthed previously undocumented attack infrastructure used by the prolific state-sponsored group SideWinder to strike entities located in Pakistan and China. SideWinder has been known to be active since at least 2012, with attack chains primarily leveraging spear-phishing as an intrusion mechanism to obtain a foothold into targeted environments.
Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft said. The tech giant's threat intelligence team said it observed both Mango Sandstorm and Mint Sandstorm weaponizing CVE-2023-27350 in their operations to achieve initial access.
Beijing sent a message to foreign businesses this week when it launched an investigation into Shanghai-based Capvision Partners on the grounds of national security, accusing the consultancy firm of failure to prevent espionage. State-sponsored broadcaster China Central Television reported that the raid led to the arrest of a senior researcher from a large state-owned enterprise in China - for providing Capvision's foreign clients with intelligence.
It's March 2023 Patch Tuesday, and Microsoft has delivered fixes for 74 CVE-numbered vulnerabilities, including two actively exploited in the wild by different threat actors. "CVE-2023-23397 is a critical EoP vulnerability in Microsoft Outlook that is triggered when an attacker sends a message with an extended MAPI property with a UNC path to an SMB share on a threat actor-controlled server. No user interaction is required," Microsoft explained.