Spam and phishing in Q1 2017
Spam: quarterly highlights Spam from the Necurs botnet We wrote earlier about a sharp increase in the amount of spam with malicious attachments, mainly Trojan encryptors. Most of that spam was coming from the Necurs botnet, which is currently considered the world’s largest spam botnet. However, in late December 2016, the network’s activity almost ceased […] more…Inside of the WASP’s nest: deep dive into PyPI-hosted malware
Photo by Matheus Queiroz on Unsplash In late 2022 we decided to start monitoring PyPI, arguably the most important Python repository, as there were a number of reports on it hosting malware. PyPI took exceptional relevance amongst all repositories as, historically, it was trusted by default by many software developers. Any security breach or abuse […] more…APT43: An investigation into the North Korean group’s cybercrime operations
Introduction As recently reported by our Mandiant’s colleagues, APT43 is a threat actor believed to be associated with North Korea. APT43’s main targets include governmental institutions, research groups, think tanks, business services, and the manufacturing sector, with most victims located in the United States and South Korea. The group uses a variety of techniques and […] more…IT threat evolution Q3 2020. Non-mobile statistics
These statistics are based on detection verdicts of Kaspersky products received from users who consented to provide statistical data. Quarterly figures According to Kaspersky Security Network, in Q3: Kaspersky solutions blocked 1,416,295,227 attacks launched from online resources across the globe. 456,573,467 unique URLs were recognized as malicious by Web Anti-Virus components. Attempts to run malware […] more…The Tetrade: Brazilian banking malware goes global
Introduction Brazil is a well-known country with plenty of banking trojans developed by local crooks. The Brazilian criminal underground is home to some of the world’s busiest and most creative perpetrators of cybercrime. Like their counterparts’ in China and Russia, their cyberattacks have a strong local flavor, and for a long time, they limited their […] more…Glupteba Campaign Hits Network Routers and Updates C&C Servers with Data from Bitcoin Transactions
by Jaromir Horejsi and Joseph C. Chen We recently caught a malvertising attack distributing the malware Glupteba. This is an older malware that was previously connected to a campaign named Operation Windigo and distributed through exploit kits to Windows users. In 2018, a security company reported that the Glupteba botnet may have been independent from […] more…MuddyWater Resurfaces, Uses Multi-Stage Backdoor POWERSTATS V3 and New Post-Exploitation Tools
By Daniel Lunghi and Jaromir Horejsi We found new campaigns that appear to wear the badge of MuddyWater. Analysis of these campaigns revealed the use of new tools and payloads, which indicates that the well-known threat actor group is continuously developing their schemes. We also unearthed and detailed our other findings on MuddyWater, such as […] more…Confucius Update: New Tools and Techniques, Further Connections with Patchwork
by Daniel Lunghi and Jaromir Horejsi Back in February, we noted the similarities between the Patchwork and Confucius groups and found that, in addition to the similarities in their malware code, both groups primarily went after targets in South Asia. During the months that followed in which we tracked Confucius’ activities, we found that they […] more…OPC UA security analysis
This paper discusses our project that involved searching for vulnerabilities in implementations of the OPC UA protocol. In publishing this material, we hope to draw the attention of vendors that develop software for industrial automation systems and the industrial internet of things to problems associated with using such widely available technologies, which turned out to […] more…Ztorg: money for infecting your smartphone
This research started when we discovered an infected Pokémon GO guide in Google Play. It was there for several weeks and was downloaded more than 500,000 times. We detected the malware as Trojan.AndroidOS.Ztorg.ad. After some searching, I found some other similar infected apps that were being distributed from the Google Play Store. The first of […] more…Spam and phishing in 2016
The year in figures According to Kaspersky Lab, in 2016: The proportion of spam in email flows was 58.31%, which is 3.03 percentage points more than in 2015. 62.16% of spam emails were no more than 2 KB in size. 12.08% of spam was sent from the US. Trojan.Win32.Bayrob was the most popular malware family […] more…More information
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