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FireEye and Microsoft on Thursday said they discovered three more malware strains in connection with the SolarWinds supply-chain attack, including a "sophisticated second-stage backdoor," as the investigation into the  sprawling espionage campaign  continues to yield fresh clues about the threat actor's tactics and techniques.  Dubbed GoldMax (aka SUNSHUTTLE), GoldFinder, and Sibot, the new set of malware adds to a growing list of malicious tools such as  Sunspot ,  Sunburst  (or Solorigate),  Teardrop , and  Raindrop  that were stealthily delivered to enterprise networks by  alleged Russian operatives . "These tools are new pieces of malware that are unique to this actor," Microsoft  said . "They are tailor-made for specific networks and are assessed to be introduced after the actor has gained access through compromised credentials or the SolarWinds binary and after moving laterally with Teardrop and other hands-on-keyboard act...

Signaling a major shift to its ads-driven business model, Google on Wednesday unequivocally stated it would not build alternate identifiers or tools to track users across multiple websites once it begins phasing out third-party tracking cookies from its Chrome browser by early 2022. "Instead, our web products will be powered by privacy-preserving APIs which prevent individual tracking while still delivering results for advertisers and publishers,"  said  David Temkin, Google's director of product management for ads privacy and trust. "Advances in aggregation, anonymization, on-device processing and other privacy-preserving technologies offer a clear path to replacing individual identifiers." The changes, which could potentially reshape the advertising landscape, are expected only to cover websites visited via Chrome and do not extend to mobile apps. At the same time, Google acknowledged that other companies might find alternative ways to track individual us...

Enterprise cloud security firm Qualys has become the latest victim to join a long list of entities to have suffered a data breach after zero-day vulnerabilities in its Accellion File Transfer Appliance (FTA) server were exploited to steal sensitive business documents. As proof of access to the data, the cybercriminals behind the recent hacks targeting Accellion FTA servers have shared screenshots of files belonging to the company's customers on a publicly accessible data leak website operated by the CLOP ransomware gang. Confirming the incident, Qualys Chief Information Security Officer Ben Carr  said  a detailed probe "identified unauthorized access to files hosted on the Accellion FTA server" located in a DMZ (aka  demilitarized zone ) environment that's segregated from the rest of the internal network. "Based on this investigation, we immediately notified the limited number of customers impacted by this unauthorized access," Carr added. "The in...

Following Microsoft's release of out-of-band patches to address multiple zero-day flaws in on-premises versions of Microsoft Exchange Server, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  issued  an emergency directive warning of " active exploitation " of the vulnerabilities. The alert comes on the heels of Microsoft's  disclosure  that China-based hackers were exploiting unknown software bugs in Exchange server to steal sensitive data from select targets, marking the second time in four months that the U.S. has scrambled to address a widespread hacking campaign believed to be the work of foreign threat actors. While the company mainly attributed the campaign to a threat group called HAFNIUM, Slovakian cybersecurity firm ESET  said  it found evidence of CVE-2021-26855 being actively exploited in the wild by several cyber espionage groups, including LuckyMouse, Tick, and Calypso targeting servers located in the U.S., Europe, Asi...

Cybercriminals are now deploying remote access Trojans (RATs) under the guise of seemingly innocuous images hosted on infected websites, once again highlighting how threat actors quickly change tactics when their attack methods are discovered and exposed publicly. New research released by Cisco Talos reveals an active malware campaign targeting organizations in South Asia that utilize malicious Microsoft Office documents forged with macros to spread a RAT that goes by the name of  ObliqueRAT . First documented in  February 2020 , the malware has been linked to a threat actor tracked as  Transparent Tribe  (aka Operation C-Major, Mythic Leopard, or APT36), a highly prolific group allegedly of Pakistani origin known for its attacks against human rights activists in the country as well as military and government personnel in India. While the ObliqueRAT modus operandi previously overlapped with another Transparent Tribe campaign in December 2019 to disseminate Crims...

The attack surface is virtually expanding before our eyes. Protecting assets across multiple locations, with multiple solutions from different vendors, has become a daily concern for CISOs globally.  In a new e-book recently published ( download here ), CISOs with small security teams talk about the drivers for replacing their EDR/NGAV solutions with an Autonomous XDR solution and why they believe consolidation provides significant benefits to organization and team.  The first topic discussed is the need to ensure coverage and have optimal visibility in order to uncover even stealthy threats. Organizations keep adding more and more security solutions that extend visibility, yet these solutions need to be maintained, monitored, and managed, taking up quite a bit of the analyst's time. In addition, these systems each provide some visibility leaving the analysts to make contextual connections and create the complete attack storyline. Unfortunately, these processes take time, ...

Microsoft has awarded an independent security researcher $50,000 as part of its bug bounty program for reporting a flaw that could have allowed a malicious actor to hijack users' accounts without their knowledge. Reported by Laxman Muthiyah, the vulnerability aims to brute-force the seven-digit security code that's sent to a user's email address or mobile number to corroborate his (or her) identity before resetting the password in order to recover access to the account. Put differently, the account takeover scenario is a consequence of privilege escalation stemming from an authentication bypass at an endpoint which is used to verify the codes sent as part of the  account recovery process . The company addressed the issue in November 2020, before details of the flaw came to light on Tuesday. Although there are encryption barriers and rate-limiting checks designed to prevent an attacker from repeatedly submitting all the 10 million combinations of the codes in an automa...

Microsoft has  released emergency patches  to address four previously undisclosed security flaws in Exchange Server that it says are being actively exploited by a new Chinese state-sponsored threat actor with the goal of perpetrating data theft. Describing the attacks as "limited and targeted," Microsoft Threat Intelligence Center (MSTIC) said the adversary used these vulnerabilities to access on-premises Exchange servers, in turn granting access to email accounts and paving the way for the installation of additional malware to facilitate long-term access to victim environments. The tech giant primarily attributed the campaign with high confidence to a threat actor it calls HAFNIUM, a state-sponsored hacker collective operating out of China, although it suspects other groups may also be involved. Discussing the tactics, techniques, and procedures (TTPs) of the group for the first time, Microsoft paints HAFNIUM as a "highly skilled and sophisticated actor" that m...

Exactly a month after  patching  an actively exploited zero-day flaw in Chrome, Google today rolled out fixes for yet another zero-day vulnerability in the world's most popular web browser that it says is being abused in the wild. Chrome 89.0.4389.72, released by the search giant for Windows, Mac, and Linux on Tuesday, comes with a total of 47 security fixes, the most severe of which concerns an "object lifecycle issue in audio." Tracked as CVE-2021-21166, the security flaw is one of the two bugs reported last month by Alison Huffman of Microsoft Browser Vulnerability Research on February 11. A separate object lifecycle flaw, also identified in the audio component, was reported to Google on February 4, the same day the stable version of Chrome 88 became available. With no additional details, it's not immediately clear if the two security shortcomings are related. Google acknowledged that an exploit for the vulnerability exists in the wild but stopped short of s...