CVE-2019-9768

Thinkst Canarytokens through commit hash 4e89ee0 2019-03-01 relies on limited variation in size, metadata, and timestamp, which makes it easier for attackers to estimate whether a Word document contains a token...

New Trickbot Variant Touts Stealthy Code-Injection Trick

Trickbot has been around since 2016 – but a new variant of the infamous financial trojan has caught the eyes of researchers with a stealthy code-injection technique. Researchers at Cyberbit this week said that they have found a new Trickbot iteration that features a sneaky method of performing...

CVE-2018-3932

An exploitable stack-based buffer overflow exists in the Microsoft Word document conversion functionality of the Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64 6,1,2018,0312. A crafted Microsoft Word DOC document can lead to a stack-based buffer overflow, resultin...

poi: Parsing of multiple file types can cause a denial of service via infinite loop or out of memory exception

Apache POI in versions prior to release 3.17 are vulnerable to Denial of Service Attacks: 1 Infinite Loops while parsing crafted WMF, EMF, MSG and macros POI bugs 61338 and 61294, and 2 Out of Memory Exceptions while parsing crafted DOC, PPT and XLS POI bugs 52372 and 61295...

IcedID Banking Trojan Teams up with Ursnif/Dreambot for Distribution

Update: 4/11 we have corrected the detection to Ursnif/Dreambot This post was authored by Ross Gibb with research contributions from Daphne Galme, and Michael Gorelik of Morphisec, a Cisco Security Technical Alliance partner. Cisco has noticed an increase in infections by the banking trojan IcedI...

SANNY Malware Delivery Method Updated in Recently Observed Attacks

Introduction In the third week of March 2018, through FireEye’s Dynamic Threat Intelligence, FireEye discovered malicious macro-based Microsoft Word documents distributing SANNY malware to multiple governments worldwide. Each malicious document lure was crafted in regard to relevant regional...

MS Word Maybe Used for Cryptojacking Attacks

By David Balaban Cryptojacking JavaScript can be launched in Word documents - New This is a post from HackRead.com Read the original post: MS Word Maybe Used for Cryptojacking Attacks...

A week in security (February 19 – February 25)

Last week on Malwarebytes Labs, we gave readers a primer on encryption, took a stab at that Deepfakes tool Internet users seem to be interested in, and started a new series that talks about GDPR. We also looked at a drive-by download campaign that starts in booby-trapped Chinese websites that dro...

Apache POI Denial of Service Vulnerability (CNVD-2018-03242)

Apache POI is the United States Apache Apache Software Foundation, an open source library that provides APIs to Java programs can be read and write Microsoft Office format files. There are security vulnerabilities in Apache POI. The vulnerability can be exploited to cause a denial of service out ...

CVE-2017-12626

Apache POI in versions prior to release 3.17 are vulnerable to Denial of Service Attacks: 1 Infinite Loops while parsing crafted WMF, EMF, MSG and macros POI bugs 61338 and 61294, and 2 Out of Memory Exceptions while parsing crafted DOC, PPT and XLS POI bugs 52372 and 61295...

Ubuntu 14.04 LTS : LibreOffice vulnerabilities (USN-3472-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3472-1 advisory. Marcin Noga discovered that LibreOffice incorrectly handled PPT documents. If a user were tricked into opening a specially crafted PPT document, a remote...

USN-3472-1 libreoffice vulnerabilities

Marcin Noga discovered that LibreOffice incorrectly handled PPT documents. If a user were tricked into opening a specially crafted PPT document, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code. CVE-2017-12607 Marcin Noga discovered that LibreOffice...

A week in security (October 9 – October 15)

Last week on the Labs blog, we talked about GDPR as part of our series in the National Cyber Security Awareness Month NCSAM. We also discussed a new method for phishing Apple ID passwords and the possible ramifications. We analyzed the malvertising chain due to a script that was found on popular...

Threat Round Up for Oct 6 - Oct 13

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between October 6 and October 13. As with previous round-ups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavior...

Extreme Office 2017 suffers from a memory corruption vulnerability (CNVD-2017-31167)

Extreme Office is an independently controlled office learning software developed by Beijing Haiteng Times Technology Co. Extreme Writing 2017 can create, modify and edit doc, docx files. Extreme Writing in Extreme Office suffers from a memory corruption vulnerability when handling special docx...

Defray Ransomware Seen Targeting Education, Healthcare Industry

Researchers observed a new, albeit small and selective ransomware campaign earlier this month targeting both education and healthcare verticals. The ransomware, dubbed Defray, comes hidden in rigged Microsoft Word document attachments, sent via email. Researchers with Proofpoint, who spotted two...

Attack on Critical Infrastructure Leverages Template Injection

Contributors: Sean Baird, Earl Carter, Erick Galinkin, Christopher Marczewski & Joe Marshall Executive SummaryAttackers are continually trying to find new ways to target users with malware sent via email. Talos has identified an email-based attack targeting the energy sector, including nuclear...

Metadata Anonymisation Toolkit Information Disclosure Vulnerability

Metadata Anonymisation Toolkit MAT is a metadata anonymization toolkit. The toolkit supports the anonymization or deletion of metadata such as Word documents, images and music files. An information disclosure vulnerability exists in MAT versions 0.6 and 0.6.1. An attacker can exploit this...

DocuSign Phishing Campaign Includes Hancitor Downloader

Electronic document exchange vendor DocuSign warned on Monday of a wave of phishing emails targeting its customers with links to malicious Word documents. The campaign, it said, was tied to an earlier breach of its computer networks where hackers were able to gain “temporary access” and exfiltrat...

Locky Ransomware Roars Back to Life Via Necurs Botnet

Cybercriminals behind the Locky ransomware and Necurs botnet are back in business. Last Friday researchers spotted both delivering nearly 35,000 emails in just a few hours, the first major Locky campaign researchers have seen in months, according to Cisco Talos. Researchers warn the latest Locky...