Microsoft Office Vulnerabilities Used to Distribute Zyklon Malware in Recent Campaign

Introduction FireEye researchers recently observed threat actors leveraging relatively new vulnerabilities in Microsoft Office to spread Zyklon HTTP malware. Zyklon has been observed in the wild since early 2016 and provides myriad sophisticated capabilities. Zyklon is a publicly available,...

A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017

Adopting reliable attack methods and techniques borrowed from more evolved threat types, ransomware attained new levels of reach and damage in 2017. The following trends characterize the ransomware narrative in the past year: Three global outbreaks showed the force of ransomware in making...

Automatize Obfuscation and Generation of MS Office Documents: macro_pack

The macropack is a tool used to automatize obfuscation and generation of MS Office documents for pentest, demo, and social engineering assessments. The goal of macropack is to simplify antimalware solutions bypass and automatize the process from vba generation to final Office document generation...

Microsoft Office - Dynamic Data Exchange 'DDE' Payload Delivery (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Microsoft Office DDE Payload Delivery', 'Description' = %q This module generates an DDE command to place within a word document, that when...

Microsoft Office DDE Payload Delivery Exploit

This Metasploit module generates an DDE command to place within a word document, that when executed, will retrieve a HTA payload via HTTP from an web server. This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class...

Microsoft Office DDE Payload Delivery

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Microsoft Office DDE Payload Delivery', 'Description' = %q This module generates an DDE command to place within a word document, that when...

December Patch Tuesday: Quiet End to the Year

This December Patch Tuesday is considerably lighter than last month’s patch releases. While only three of the fixes were for Windows operating systems, the majority of the vulnerabilities to pay attention to are Browser/Scripting Engine-based. Overall, this month's updates address are fixes for 3...

Microsoft Patch Tuesday - December 2017

Today, Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 34 new vulnerabilities with 21 of them rated critical and 13 of them rated important. These vulnerabilities...

Microsoft Office Defense in Depth Update

Microsoft has released an update for Microsoft Office that provides enhanced security as a defense-in-depth measure. The update disables the Dynamic Data Exchange protocol DDE in all supported editions of Microsoft Word. Microsoft is continuing to investigate this issue and will update this...

DDEtect - Simple DDE Object Detector

Written by Amit Serper, @0xAmit DDEtector is a simple DDE object detector written in python Currently supports only word DOCX and legacy DOC files Prints the contents of the DDE payloads Note: In some cases DDEtect won't print the entire DDE payload. I'm working on writing a better matching...

Microsoft Outlook 'Dynamic Data Exchange (DDE)' Attacks Security Advisory (4053440)

This host is missing an important security update according to Microsoft Security Advisory 4053440. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier:...

Microsoft Publisher 'Dynamic Data Exchange (DDE)' Attacks Security Advisory (4053440)

This host is missing an important security update according to Microsoft Security Advisory 4053440. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier:...

Microsoft Excel 'Dynamic Data Exchange (DDE)' Attacks Security Advisory (4053440)

This host is missing an important security update according to Microsoft Security Advisory 4053440. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier:...

Microsoft Provides Guidance on Mitigating DDE Attacks

Despite a rash of attacks leveraging Dynamic Data Exchange fields in Office, including some spreading destructive ransomware, Microsoft has remained insistent that DDE is a product feature and won’t address it as a vulnerability. Microsoft on Wednesday did, however, put some guidance in admins’...

Microsoft Releases Security Advisory on Dynamic Data Exchange (DDE)

Microsoft has released an advisory that provides guidance on securing Dynamic Data Exchange DDE fields in Microsoft Office applications. Exploitation of this protocol may allow an attacker to take control of an affected system. US-CERT encourages users and administrators to review the Microsoft...

Russian 'Fancy Bear' Hackers Using (Unpatched) Microsoft Office DDE Exploit

Cybercriminals, including state-sponsored hackers, have started actively exploiting a newly discovered Microsoft Office vulnerability that Microsoft does not consider as a security issue and has already denied to patch it. Last month, we reported how hackers could leverage a built-in feature of...

X (Formerly Twitter): OS Command Execution on User's PC via CSV Injection

Summary: Twitter is vulnerable to CSV Injection. If an attacker can successfully exploit this, then they will compromise the PC of the user. The injection point is via a tweet on the main twitter.com site while the retrieval point is via the “Export Data” option on the analytics site. Description...

A week in security (October 16 – October 22)

Last week was an eventful one in security, keeping our research and intel teams on their toes. Multiple security researchers homed in on suspicious and malicious apps on Google Play, affecting thousands of Android users. A new variant of Mac malware Proton was also found in the wild, this time...

Necurs-Based DDE Attacks Now Spreading Locky Ransomware

Microsoft may soon have to reflect on its stance that the use of an Office feature called DDE to execute code on compromised computers doesn’t merit a patch. The SANS Internet Storm Center last night said the Necurs botnet has been spreading Locky ransomware using the DDE attack. Handler Brad...

Microsoft Office DDE Remote Code Execution

A remote code execution vulnerability exists in Microsoft Office. The vulnerability is due to the DDE feature that allows an Office application to load data from other Office applications. A remote attacker can exploit this vulnerability by enticing the target user to open a specially crafted ema...