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Multiple cybersecurity authorities from Australia, Canada, New Zealand, the U.K., and the U.S. on Wednesday released a  joint advisory  warning of threats targeting managed service providers (MSPs) and their customers. Key among the recommendations include identifying and disabling accounts that are no longer in use, enforcing multi-factor authentication (MFA) on MSP accounts that access customer environments, and ensuring transparency in ownership of security roles and responsibilities. MSPs have emerged as an attractive attack route for cybercriminals to scale their attacks, as a vulnerable provider can be weaponized as an initial access vector to breach several downstream customers at once. The spillover effects of such intrusions, as witnessed in the wake of high-profile breaches aimed at  SolarWinds  and  Kaseya  in recent years, have once again underlined the need to secure the software supply chain. The targeting of MSPs by malicious cyber acto...

Researchers have detailed a previously undocumented .NET-based post-exploitation framework called IceApple that has been deployed on Microsoft Exchange server instances to facilitate reconnaissance and data exfiltration. "Suspected to be the work of a state-nexus adversary, IceApple remains under active development, with 18 modules observed in use across a number of enterprise environments, as of May 2022," CrowdStrike  said  in a Wednesday report. The cybersecurity firm, which discovered the sophisticated malware in late 2021, noted its presence in multiple victim networks and in geographically distinct locations. Targeted victims span a wide range of sectors, including technology, academic, and government entities. A post-exploitation toolset, as the name implies, is not used to provide initial access, but is rather employed to carry out follow-on attacks after having already compromised the hosts in question. IceApple is notable for the fact that it's an in-memo...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  the recently disclosed F5 BIG-IP flaw to its  Known Exploited Vulnerabilities Catalog  following reports of  active abuse  in the wild. The flaw, assigned the identifier  CVE-2022-1388  (CVSS score: 9.8), concerns a  critical bug  in the BIG-IP iControl REST endpoint that provides an unauthenticated adversary with a method to execute arbitrary system commands. "An attacker can use this vulnerability to do just about anything they want to on the vulnerable server," Horizon3.ai  said  in a report. "This includes making configuration changes, stealing sensitive information and moving laterally within the target network." Patches and mitigations for the flaw were announced by F5 on May 4, but it has been  subjected  to  in-the-wild   exploitation  over the past week, with attackers attempting to install a web shell that grants...

An espionage-focused threat actor known for targeting China, Pakistan, and Saudi Arabia has expanded to set its sights on Bangladeshi government organizations as part of an ongoing campaign that commenced in August 2021. Cybersecurity firm Cisco Talos attributed the activity with moderate confidence to a hacking group dubbed the  Bitter APT  based on overlaps in the command-and-control (C2) infrastructure with that of prior campaigns mounted by the same actor. "Bangladesh fits the profile we have defined for this threat actor, previously targeting Southeast Asian countries including  China , Pakistan, and Saudi Arabia," Vitor Ventura, lead security researcher at Cisco Talos for EMEA and Asia, told The Hacker News. "And now, in this latest campaign, they have widened their reach to Bangladesh. Any new country in southeast Asia being targeted by Bitter APT shouldn't be of surprise." Bitter (aka APT-C-08 or T-APT-17) is suspected to be a South Asian hacking ...

A previously undocumented remote access trojan (RAT) written in the Go programming language has been spotted disproportionately targeting entities in Italy, Spain, and the U.K. Called  Nerbian RAT  by enterprise security firm Proofpoint, the novel malware leverages COVID-19-themed lures to propagate as part of a low volume email-borne phishing campaign that started on April 26, 2022. "The newly identified Nerbian RAT leverages multiple anti-analysis components spread across several stages, including multiple open-source libraries," Proofpoint researchers  said  in a report shared with The Hacker News.  "It is written in operating system (OS) agnostic Go programming language, compiled for 64-bit systems, and leverages several encryption routines to further evade network analysis." The messages, amounting to less than 100 in number, purport to be from the World Health Organization about safety measures related to COVID-19, urging potential victims to open a ...