Threat Roundup for Feb. 8 to Feb. 15

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Feb. 08 and Feb. 15. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

DEBIAN-CVE-2018-20752

An issue was discovered in Recon-ng before 4.9.5. Lack of validation in the modules/reporting/csv.py file allows CSV injection. More specifically, when a Twitter user possesses an Excel macro for a username, it will not be properly sanitized when exported to a CSV file. This can result in remote...

CVE-2018-16858

It was found that libreoffice before versions 6.0.7 and 6.1.3 was vulnerable to a directory traversal attack which could be used to execute arbitrary macros bundled with a document. An attacker could craft a document, which when opened by LibreOffice, would execute a Python method from a script i...

CVE-2018-16858

It was found that libreoffice was vulnerable to a directory traversal attack which could be used to execute arbitrary macros bundled with a document. An attacker could craft a document, which when opened by LibreOffice, would execute a Python method from a script in any arbitrary file system...

Phishing Campaign Delivers Nasty Ransomware, Credential-Theft Two-Punch

An array of phishing emails harboring Word attachments with embedded macros have been infecting systems with a deadly malware and ransomware duo. The campaign, spotted by researchers at Carbon Black, has hit infected systems with a lethal attack combination that harvests credentials, gathers syst...

GandCrab ransomware and Ursnif virus spreading via MS Word macros

Security researchers have discovered two separate malware campaigns, one of which is distributing the Ursnif data-stealing trojan and the GandCrab ransomware in the wild, whereas the second one is only infecting victims with Ursnif malware. Though both malware campaigns appear to be a work of two...

GandCrab ransomware and Ursnif virus spreading via MS Word macros

Security researchers have discovered two separate malware campaigns, one of which is distributing the Ursnif data-stealing trojan and the GandCrab ransomware in the wild, whereas the second one is only infecting victims with Ursnif malware. Though both malware campaigns appear to be a work of two...

Carbon Black TAU & ThreatSight Analysis: GandCrab and Ursnif Campaign

Summary Analysis conducted by Andrew Costis, Cathy Cramer, Emily Miner and Jared Myers. The Carbon Black ThreatSight team observed an interesting campaign over the last month. ThreatSight worked with the Threat Analysis Unit TAU to research the campaign. This report is being released to help...

New malware found using Google Drive as its command-and-control server

Since most security tools also keep an eye on the network traffic to detect malicious IP addresses, attackers are increasingly adopting infrastructure of legitimate services in their attacks to hide their malicious activities. Cybersecurity researchers have now spotted a new malware attack campai...

New malware found using Google Drive as its command-and-control server

Since most security tools also keep an eye on the network traffic to detect malicious IP addresses, attackers are increasingly adopting infrastructure of legitimate services in their attacks to hide their malicious activities. Cybersecurity researchers have now spotted a new malware attack campai...

[SECURITY] Fedora 28 Update: unrtf-0.21.9-8.fc28

UnRTF is a command-line program written in C which converts documents in Rich Text Format .rtf to HTML, LaTeX, troff macros, and RTF itself. Converting to HTML, it supports a number of features of Rich Text Format: Changes in the text's font, size, weight bold, and slant italic Underlines and...

Emotet re-emerges after the holidays

While Emotet has been around for many years and is one of the most well-known pieces of malware in the wild, that doesn't mean attackers don't try to freshen it up. Cisco Talos recently discovered several new campaigns distributing the infamous banking trojan via email. These new campaigns have...

TA505 Crime Gang Debuts Brand-New ServHelper Backdoor

A new backdoor named ServHelper has been spotted in the wild, acting as both a remote desktop agent as well as a downloader for a RAT called FlawedGrace. According to Proofpoint, the prolific cybercriminal gang known as TA505 developed ServHelper, which has two variants: one focused on remote...

Emotet's Thanksgiving Campaign Delivers New Recipes for Compromise

Emotet, the seemingly ubiquitous banking trojan, has turned up again after a small hiatus, this time as the anchor in a Thanksgiving-themed campaign that cranked up in the U.S. this week. It has also upgraded its capabilities with new tactics and modules, which has boosted its efficacy, according...

Vba2Graph - Generate Call Graphs From VBA Code, For Easier Analysis Of Malicious Documents

A tool for security researchers, who waste their time analyzing malicious Office macros. Generates a VBA call graph, with potential malicious keywords highlighted. Allows for quick analysis of malicous macros, and easy understanding of the execution flow. @MalwareCantFly Features Keyword...

Olympic Destroyer Wiper Changes Up Infection Routine

Olympic Destroyer, the wiper malware that briefly disrupted the Winter Olympic Games in South Korea earlier this year, appears to be back with a new first-stage dropper variant. It contains a few significant changes that indicate an evolution for the APT group behind it, according to researchers...

tRat Emerges as New Pet for APT Group TA505

A new modular malware written in Delphi dubbed tRat has scurried into the spotlight, after making its debut in large spam campaigns this fall. The remote-access trojan has yet to show all of its cards to researchers, and seems to be in a testing phase, but the fact that well-known APT group TA505...

Confluence Server Script Injection Vulnerability

Atlassian Confluence Server is a suite of professional enterprise knowledge management and collaboration software from Atlassian Australia, which can also be used to build an enterprise WiKi. the software enables collaboration and knowledge sharing amongst team members. Confluence Server suffers...

Confluence Server vulnerable to script injection

Overview User Macros of Confluence Server provided by Atlassian Pty Ltd. contains a script injection vulnerability CWE-74. Kanta Nishitani of Information Science College reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning...

JVN#37943805: Confluence Server vulnerable to script injection

User Macros of Confluence Server provided by Atlassian Pty Ltd. contains a script injection vulnerability CWE-74. Impact When the administrator embeds a malicious script into User Macros, the embedded script may be executed on the user's web browser. Solution Update the Software Update to the...