===================== = End-of-Day report = =====================
Timeframe: Donnerstag 05-09-2019 18:00 − Freitag 06-09-2019 18:00 Handler: Dimitri Robl Co-Handler: Stephan Richter
===================== = News = =====================
∗∗∗ GootKit Malware Bypasses Windows Defender by Setting Path Exclusions ∗∗∗ --------------------------------------------- As Windows Defender matures and becomes tightly integrated into Windows 10, malware writers are creating techniques to evade its detection. Such is the case with the GootKit banking Trojan, which use a UAC bypass and WMIC commands to exclude the malware executable from being scanned by Windows Defender Antivirus. --------------------------------------------- https://www.bleepingcomputer.com/news/security/gootkit-malware-bypasses-wind...
∗∗∗ [SANS ISC] PowerShell Script with a builtin DLL ∗∗∗ --------------------------------------------- I published the following diary on isc.sans.edu: “PowerShell Script with a builtin DLL“: Attackers are always trying to bypass antivirus detection by using new techniques to obfuscate their code. I recently found a bunch of scripts that encode part of their code in Base64. The code is decoded at execution [...] --------------------------------------------- https://blog.rootshell.be/2019/09/06/sans-isc-powershell-script-with-a-built...
∗∗∗ Thousands of servers infected with new Lilocked (Lilu) ransomware ∗∗∗ --------------------------------------------- Researchers spot new ransomware targeting Linux-based servers. --------------------------------------------- https://www.zdnet.com/article/thousands-of-servers-infected-with-new-lilocke...
===================== = Vulnerabilities = =====================
∗∗∗ Buffer Overflow: Exim-Sicherheitslücke beim Verarbeiten von TLS-Namen ∗∗∗ --------------------------------------------- Im Mailserver Exim wurde eine Sicherheitslücke gefunden, die Angreifern das Ausführen von Code ermöglicht. Ein Update steht bereit. --------------------------------------------- https://www.golem.de/news/buffer-overflow-exim-sicherheitsluecke-beim-verarb...
∗∗∗ BD Pyxis ∗∗∗ --------------------------------------------- This medical advisory contains mitigations for a session fixation vulnerability reported in BD’s Pyxis medication management platform. --------------------------------------------- https://www.us-cert.gov/ics/advisories/icsma-19-248-01
∗∗∗ Red Lion Controls Crimson ∗∗∗ --------------------------------------------- This advisory includes mitigations for use after free, improper restriction of operations within the bounds of a memory buffer, pointer issues, and use of hard-coded cryptographic key vulnerabilities in the Red Lion Controls Crimson software. --------------------------------------------- https://www.us-cert.gov/ics/advisories/icsa-19-248-01
∗∗∗ MS-ISAC Releases Advisory on PHP Vulnerabilities ∗∗∗ --------------------------------------------- Original release date: September 5, 2019The Multi-State Information Sharing & Analysis Center (MS-ISAC) has released an advisory on multiple Hypertext Preprocessor (PHP) vulnerabilities. An attacker could exploit some of these vulnerabilities to take control of an affected system. --------------------------------------------- https://www.us-cert.gov/ncas/current-activity/2019/09/05/ms-isac-releases-ad...
∗∗∗ Security updates for Friday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (exim4 and firefox-esr), Fedora (lxc, lxcfs, pdfresurrect, python3-lxc, rdesktop, and seamonkey), Oracle (kernel), and SUSE (nginx, python-Werkzeug, SUSE Manager Client Tools, and util-linux and shadow). --------------------------------------------- https://lwn.net/Articles/798600/
∗∗∗ Nagios Enterprises Nagios XI: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit Administratorrechten ∗∗∗ --------------------------------------------- http://www.cert-bund.de/advisoryshort/CB-K19-0790