TAU Threat Discovery: Cryptocurrency Clipper Malware Evolves

Clipper malware is designed to steal cryptocurrency from victims by replacing wallet addresses in the victim’s clipboard with wallet addresses that belong to the attacker. This stealthy technique is designed to silently trick the victim when making what appears to be a legitimate cryptocurrency...

Threat Roundup for February 14 to February 21

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Feb. 14 and Feb. 21. 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...

New Zeppelin Ransomware Targeting Tech and Health Companies

A new variant of Vega ransomware family, dubbed Zeppelin, has recently been spotted in the wild targeting technology and healthcare companies across Europe, the United States, and Canada. However, if you reside in Russia or some other ex-USSR countries like Ukraine, Belorussia, and Kazakhstan,...

New Zeppelin Ransomware Targeting Tech and Health Companies

A new variant of Vega ransomware family, dubbed Zeppelin , has recently been spotted in the wild targeting technology and healthcare companies across Europe, the United States, and Canada. However, if you reside in Russia or some other ex-USSR countries like Ukraine, Belorussia, and Kazakhstan,...

McDonalds-Themed Facebook Ads Serve Up Banking Trojans

The Mispadu banking trojan is using a McDonalds malvertising tactic to ultimately steal payment-card data and online banking information. Written in Delphi, Mispadu targets Brazil and Mexico, uses pop-up windows and contains backdoor functionality. According to researchers at ESET, Mispadu spread...

IT threat evolution Q1 2019

Targeted attacks and malware campaigns Go Zebrocy Zebrocy was first observed being used as a Sofacy backdoor in 2015. However, the collection of cases where this tool has been used mean that we consider it a subset of activity in its own right. On the basis of this threat actor's past behaviour, ...

New Golang brute forcer discovered amid rise in e-commerce attacks

E-commerce websites continue to be targeted by online criminals looking to steal personal and payment information directly from unaware shoppers. Recently, attacks have been conducted via skimmer, which is a piece of code that is either directly injected into a hacked site or referenced externall...

Vulnerability Spotlight: Multiple remote code execution vulnerabilities in Atlantis Word Processor

A member of Cisco Talos discovered these vulnerabilities. Executive summary Today, Cisco Talos is disclosing three remote code execution vulnerabilities in the Atlantis Word Processor. Atlantis Word Processor is a traditional word processor that provides a number of basic features for users, in...

Tracking Tick Through Recent Campaigns Targeting East Asia

This blog post is authored by Ashlee Benge and Jungsoo An, with contributions from Dazhuo Li. Summary Since 2016, an advanced threat group that Cisco Talos is tracking has carried out cyberattacks against South Korea and Japan. This group is known by several different names: Tick, Redbaldknight a...

Octopus-infested seas of Central Asia

For the last two years we have been monitoring a Russian-language cyberespionage actor that focuses on Central Asian users and diplomatic entities. We named the actor DustSquad and have provided private intelligence reports to our customers on four of their campaigns involving custom Android and...

Threat Roundup for October 5 to October 12

Today, as we do every week, Talos is giving you a glimpse into the most prevalent threats we’ve observed this week — covering the dates between Oct. 5 and 12. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, we will summarize the threats we’ve observed by...

Atlantis Word Processor document endnote reference code execution vulnerability

Summary An exploitable arbitrary write vulnerability exists in the Word document parser of the Atlantis word processor. A specially crafted document can prevent Atlas from adding elements to an array that is indexed by a loop. When reading from this array, the application will use an out-of-bound...

IDA-minsc Wins Second Place in Hex-Rays Plugins Contest

Introduction Ali Rizvi-Santiago of Cisco Talos recently tied for second place in the IDA plugin contest with a plugin named "IDA-minsc." IDA is a multi-processor disassembler and debugger created by the company Hex-Rays and this year there were a total of four winners with nine submissions total...

Delphi Packer Looks for Human Behavior Before Deploying Payload

As bad actors continue to innovate in the area of sandbox evasion, the use of the Delphi programming language to pack malware code has become more and more prevalent. Researchers recently observed several spam campaigns using a specific packer written in Delphi that goes to great lengths to hunt...

Increased Use of a Delphi Packer to Evade Malware Classification

Introduction The concept of "packing" or "crypting" a malicious program is widely popular among threat actors looking to bypass or defeat analysis by static and dynamic analysis tools. Evasion of classification and detection is an arms race in which new techniques are traded and used in the wild...

New Virus Decides If Your Computer Good for Mining or Ransomware

Security researchers have discovered an interesting piece of malware that infects systems with either a cryptocurrency miner or ransomware, depending upon their configurations to decide which of the two schemes could be more profitable. While ransomware is a type of malware that locks your comput...

To crypt, or to mine – that is the question

Way back in 2013 our malware analysts spotted the first malicious samples related to the Trojan-Ransom.Win32.Rakhni family. That was the starting point for this long-lived Trojan family, which is still functioning to this day. During that time the malware writers have changed: the way their Troja...

Scarab ransomware: new variant changes tactics

The Scarab ransomware was discovered in June 2017. Since then, several variants have been created and discovered in the wild. The most popular or widespread versions were distributed via the Necurs botnet and initially written in Visual C compiled. However, after unpacking, we've found that anoth...

PasDoc Parameter Injection Vulnerability

PasDoc is a set of open source Pascal and Object Pascal source code documentation generation tools . A security vulnerability exists in the delphigui/WWWBrowserRunnerDM.pas file in PasDoc version 0.14, which originates from the program not validating strings before starting the program. A remote...

CVE-2017-17527

PasDoc 0.14 is affected by a vulnerability in delphi_gui/WWWBrowserRunnerDM.pas where strings are not validated before launching the program specified by the BROWSER environment variable. This may allow an attacker to perform argument-injection via a crafted URL. Several sources (NVD, CNVD, OSV, ...