Cerber: Analyzing a Ransomware Attack Methodology To Enable Protection

Ransomware is a common method of cyber extortion for financial gain that typically involves users being unable to interact with their files, applications or systems until a ransom is paid. Accessibility of cryptocurrency such as Bitcoin has directly contributed to this ransomware model. Based on...

Cerber: Analyzing a Ransomware Attack Methodology To Enable Protection

Ransomware is a common method of cyber extortion for financial gain that typically involves users being unable to interact with their files, applications or systems until a ransom is paid. Accessibility of cryptocurrency such as Bitcoin has directly contributed to this ransomware model. Based on...

The vulnerability of Samba software allows a malicious individual to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability in the NetBIOS name service daemon nmbd of Samba allows malicious actors to execute arbitrary code by manipulating dynamic memory using the sizeof operation, with respect to an incorrect variable in the unstrcpy macro in stringwrappers.h...

Micro Focus Rumba stack buffer overflow vulnerability (CNVD-2016-04557)

Micro Focus Rumba is a terminal emulation solution using UI technology from Micro Focus UK. The solution supports users in accessing core applications from desktop, web and mobile devices. A stack buffer overflow vulnerability exists in the 'PlayMacro' function in the WdMacCtl.ocx file of Micro...

CVE-2016-5228

Stack-based buffer overflow in the PlayMacro function in ObjectXMacro.ObjectXMacro in WdMacCtl.ocx in Micro Focus Rumba 9.x before 9.3 HF 11997 and 9.4.x before 9.4 HF 12815 allows remote attackers to execute arbitrary code via a long MacroName argument. NOTE: some references mention CVE-2016-522...

Amazon Users Targets of Massive Locky Ransomware Spam Campaign

Amazon customers were targeted in a massive spear phishing campaign where recipients received Microsoft Word documents with a macro that triggered downloads of the Locky ransomware. Researchers at Comodo Threat Research Labs say it is one of the largest spam ransomware campaigns this year. Fatih...

libdwarf 'dwarf_get_macro_startend_file()' function denial of service vulnerability

libdwarf is a set of tools for reading and writing DWARF2 debugging information. A security vulnerability exists in the 'dwarfgetmacrostartendfile' function of libdwarf. An attacker can exploit this vulnerability to cause a denial of service OOB read...

Targeted Attacks against Banks in the Middle East

Introduction In the first week of May 2016, FireEye’s DTI identified a wave of emails containing malicious attachments being sent to multiple banks in the Middle East region. The threat actors appear to be performing initial reconnaissance against would-be targets, and the attacks caught our...

Targeted Attacks against Banks in the Middle East

UPDATE Dec. 8, 2017: We now attribute this campaign to APT34, a suspected Iranian cyber espionage threat group that we believe has been active since at least 2014. Learn more about APT34 and their late 2017 targeting of a government organization in the Middle East. Introduction In the first week ...

Microsoft Warns of Sneaky New Macro Trick

Microsoft is warning of an innovative new technique attackers are using to sneak macro malware past virus detection engines and add to the already huge uptick in reported macro attacks. According to researchers at Microsoft’s Malware Protection Center, they stumbled upon the macro technique in a...

Cerber Ransomware Partners with the Dridex Spam Distributor

Cerber ransomware incorporates the unusual feature of “speaking” its ransom message after successfully infecting a user machine and encrypting files. Cerber was first seen in the wild at the end of February 2016 and was observed being delivered mostly via exploit kits EK, notably using Magnitude...

Cerber Ransomware Partners with the Dridex Spam Distributor

Cerber ransomware incorporates the unusual feature of “speaking” its ransom message after successfully infecting a user machine and encrypting files. Cerber was first seen in the wild at the end of February 2016 and was observed being delivered mostly via exploit kits EK, notably using Magnitude...

Cerber Ransomware Partners with the Dridex Spam Distributor

Cerber ransomware incorporates the unusual feature of “speaking” its ransom message after successfully infecting a user machine and encrypting files. Cerber was first seen in the wild at the end of February 2016 and was observed being delivered mostly via exploit kits EK, notably using Magnitude...

Pornhub: CSV Macro injection in Video Manager (CEMI)

Missing character escaping in video title delivery of an executable CSV payload to when exporting stats to file...

A Cyber Revolution: Advanced Attacks Increasing in EMEA Reflect Political Tension

Financial, geopolitical and economical changes made 2015 a very busy year for the Europe, Middle East and Africa EMEA region, particularly in the cyber realm. FireEye has been monitoring these shifting cyber trends and has identified considerable evolutions to the EMEA threat landscape when...

Threat Outbreak Alert RuleID22083: Email Messages Distributing Malicious Software on April 5, 2016

Medium Alert ID: 44492 First Published: 2016 April 5 19:33 GMT Version: 1 Summary Cisco Security has detected significant activity related to spam email messages distributing malicious software. Email messages that are related to this threat RuleID22083 may contain the following files: Name | Siz...

Enable this New Setting to Secure your Computer from Macro-based Malware

Do you deal with MS Word files on the daily basis? If yes, then are you aware that even opening a simple doc file could compromise your system? It is a matter to think that the virus does not directly affect you, but it is you who let the virus carry out the attack by enabling deadly "Macros" to...

Microsoft Deploys Macro-Blocker in Office to Curb Malware

If it ain’t broke, don’t fix it. If there’s one thing the recent surge in threats using macros to spread malware has shown, it’s that the vector is clearly working for attackers. Developers at Microsoft hope a feature in the latest version of Microsoft Office will reduce the frequency of those...

Stop Scanning My Macro

FireEye Labs detected an interesting evasion strategy in two recent, large Dridex campaigns. These campaigns changed the attachment file-type and location of malicious logic in an attempt to avoid scanners. Overview Both campaigns used an invoice theme and came from a wide variety of sending...

Stop Scanning My Macro

FireEye Labs detected an interesting evasion strategy in two recent, large Dridex campaigns. These campaigns changed the attachment file-type and location of malicious logic in an attempt to avoid scanners. Overview Both campaigns used an invoice theme and came from a wide variety of sending...