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The Hacker News - Cybersecurity News and Analysis: smb malware

SMBleed: A New Critical Vulnerability Affects Windows SMB Protocol

SMBleed: A New Critical Vulnerability Affects Windows SMB Protocol

June 09, 2020Ravie Lakshmanan
Cybersecurity researchers today uncovered a new critical vulnerability affecting the Server Message Block (SMB) protocol that could allow attackers to leak kernel memory remotely, and when combined with a previously disclosed "wormable" bug, the flaw can be exploited to achieve remote code execution attacks. Dubbed " SMBleed " ( CVE-2020-1206 ) by cybersecurity firm ZecOps, the flaw resides in SMB's decompression function — the same function as with SMBGhost or EternalDarkness bug ( CVE-2020-0796 ), which came to light three months ago, potentially opening vulnerable Windows systems to malware attacks that can propagate across networks. The newly discovered vulnerability impacts Windows 10 versions 1903 and 1909, for which Microsoft today released security patches as part of its monthly Patch Tuesday updates for June . The development comes as the US Cybersecurity and Infrastructure Security Agency (CISA) issued an advisory last week warning Windows 10
Critical Patch Released for 'Wormable' SMBv3 Vulnerability — Install It ASAP!

Critical Patch Released for 'Wormable' SMBv3 Vulnerability — Install It ASAP!

March 12, 2020Mohit Kumar
Microsoft today finally released an emergency software update to patch the recently disclosed very dangerous vulnerability in SMBv3 protocol that could let attackers launch wormable malware , which can propagate itself from one vulnerable computer to another automatically. The vulnerability, tracked as CVE-2020-0796 , in question is a remote code execution flaw that impacts Windows 10 version 1903 and 1909, and Windows Server version 1903 and 1909. Server Message Block (SMB), which runs over TCP port 445, is a network protocol that has been designed to enable file sharing, network browsing, printing services, and interprocess communication over a network. The latest vulnerability, for which a patch update ( KB4551762 ) is now available on the Microsoft website, exists in the way SMBv3 protocol handles requests with compression headers, making it possible for unauthenticated remote attackers to execute malicious code on target servers or clients with SYSTEM privileges. Compre
FBI issues alert over two new malware linked to Hidden Cobra hackers

FBI issues alert over two new malware linked to Hidden Cobra hackers

May 30, 2018Swati Khandelwal
The US-CERT has released a joint technical alert from the DHS and the FBI, warning about two newly identified malware being used by the prolific North Korean APT hacking group known as Hidden Cobra. Hidden Cobra, often known as Lazarus Group and Guardians of Peace, is believed to be backed by the North Korean government and known to launch attacks against media organizations, aerospace, financial and critical infrastructure sectors across the world. The group was even associated with the WannaCry ransomware menace that last year shut down hospitals and businesses worldwide. It is reportedly also linked to the 2014 Sony Pictures hack , as well as the SWIFT Banking attack in 2016. Now, the Department of Homeland Security (DHS) and the FBI have uncovered two new pieces of malware that Hidden Cobra has been using since at least 2009 to target companies working in the media, aerospace, financial, and critical infrastructure sectors across the world. The malware Hidden Cobra is
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