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October 5, 2022

MSSQL, meet Maggie. A novel backdoor for Microsoft SQL…

Continuing our monitoring of signed binaries, DCSO CyTec recently found a novel backdoor malware targeting Microsoft SQL servers. The malware comes in form of an “Extended Stored Procedure” DLL, a…

How 3 hours of inaction from Amazon cost cryptocurrency holders $235,000

For 2nd time in 4 years, Amazon loses control of its IP space in BGP hijacking.

Remove All The Callbacks – BlackByte Ransomware Disables EDR Via RTCore64.sys Abuse

A fresh exploration of the malware uncovers a new tactic for bypassing security products by abusing a known driver vulnerability

MAR-10365227-3.v1 China Chopper Webshells

CISA analyzed 15 files associated with China Chopper malware. The files are modified Offline Address Book (OAB) Virtual Directory (VD) configuration files for Microsoft Exchange servers. The files have been modified with a variant of the China Chopper webshell. The webshells allow an attacker to remotely access the server and execute arbitrary code on the system(s).referenced in this bulletin or otherwise.

MAR-10365227-2.v1 HyperBro

CISA analyzed 4 files associated with HyperBro malware. The files creates a backdoor program that is capable of uploading and downloading files to and from the system. The RAT is also capable of logging keystrokes and executing commands on the system.

PHP Supply Chain Attack on Composer

We recently discovered a vulnerability in Composer, the main package manager for PHP, and were able to use it to take over the central repository, packagist.org.