Cybersecurity researchers warn of a new PowerShell backdoor that disguises itself as part of the Windows update process to avoid detection. Cybersecurity researchers from SafeBreach a warning of a new PowerShell backdoor masqueraded as a Windows update process to avoid detection. The backdoor spreads via weaponized Word documents (“Apply Form.docm.”) posing as a LinkedIn-based job […]
China-linked threat actors APT41 (a.k.a. Winnti) targeted organizations in Hong Kong, in some cases remaining undetected for a year. Symantec researchers reported that cyberespionage group APT41 targeted organizations in Hong Kong in a campaign that is a likely continuation of the Operation CuckooBees activity detailed by Cybereason in May. Winnti (aka APT41, Axiom, Barium, Blackfly) is a cyberespionage […]
Microsoft warns that new Prestige ransomware is targeting transportation and logistics organizations in Ukraine and Poland. Microsoft reported that new Prestige ransomware is being used in attacks aimed at transportation and logistics organizations in Ukraine and Poland. The Prestige ransomware first appeared in the threat landscape on October 11 in attacks occurring within an hour […]
Threat actors have compromised hundreds of servers exploiting critical flaw CVE-2022-41352 in Zimbra Collaboration Suite (ZCS). Last week, researchers from Rapid7 warned of the exploitation of unpatched zero-day remote code execution vulnerability, tracked as CVE-2022-41352, in the Zimbra Collaboration Suite. Rapid7 has published technical details, including a proof-of-concept (PoC) code and indicators of compromise (IoCs) regarding […]
Chinese-speaking threat actor, tracked as WIP19, is targeting telecommunications and IT service providers in the Middle East and Asia. SentinelOne researchers uncovered a new threat cluster, tracked as WIP19, which has been targeting telecommunications and IT service providers in the Middle East and Asia. The experts believe the group operated for cyber espionage purposes and is […]
The Budworm espionage group resurfaced targeting a U.S.-based organization for the first time, Symantec Threat Hunter team reported. The Budworm cyber espionage group (aka APT27, Bronze Union, Emissary Panda, Lucky Mouse, TG-3390, and Red Phoenix) is behind a series attacks conducted over the past six months against a number of high-profile targets, including the government of […]
An APT group tracked as Polonium employed custom backdoors in attacks aimed at Israelian entities since at least September 2021. POLONIUM APT focused only on Israeli targets, it launched attacks against more than a dozen organizations in various industries, including engineering, information technology, law, communications, branding and marketing, media, insurance, and social services. Microsoft MSTIC […]
North Korea-linked Lazarus APT has been spotted deploying a Windows rootkit by taking advantage of an exploit in a Dell firmware driver. The North Korea-backed Lazarus Group has been observed deploying a Windows rootkit by relying on exploit in a Dell firmware driver dbutil_2_3.sys, ESET researchers warn. The discovery was made by ESET researchers while […]
Researchers link recently discovered Linux ransomware Cheerscrypt to the China-linked cyberespionage group DEV-0401. Researchers at cybersecurity firm Sygnia attributed the recently discovered Linux ransomware Cheerscrypt to the China-linked cyber espionage group Bronze Starlight (aka DEV-0401, APT10) Bronze Starlight, has been active since mid-2021, in June researchers from Secureworks reported that the APT group is deploying […]
A cyberespionage group, tracked as Witchetty, used steganography to hide a previously undocumented backdoor in a Windows logo. Broadcom’s Symantec Threat Hunter Team observed a threat actor, tracked as Witchetty, using steganography to hide a previously undocumented backdoor in a Windows logo. The group used the backdoor in attacks against Middle Eastern governments. The cyber […]