Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

In 2021, malicious Office documents accounted for 37% of all malware downloads detected by Netskope, showing favoritism for this infection vector among attackers. This is likely due to the ubiquitous usage of Microsoft Office in enterprises across the globe. Throughout 2021 we have analyzed many techniques used by attackers to deliver payloads through infected documents, which included the return of Emotet, a campaign that primarily uses infected documents to spread malware.

Protecting your data in the cloud is fundamental to your security posture in terms of business continuity and disaster recovery. While Rubrik customers utilize the cloud every day to safely store off-site copies of their data, this blog is going to explain how we’ve made that practice even safer! We know that security threats to backup systems are on the rise, with hacking, malware, and even human error becoming more prevalent in the age of remote work.

Our security research team will explain a real attack scenario from the black box and white box perspective on how a vulnerable AWS Lambda function could be used by attackers as initial access into your cloud environment. Finally, we show the best practices to mitigate this vector of attack. Serverless is becoming mainstream in business applications to achieve scalability, performance, and cost efficiency without managing the underlying infrastructure.

No sooner did word start to spread about Apache Log4j that the usual torrent of blaring headlines, vendor marketing, and tips and tricks-style “information” quickly followed. You can find plenty of solid technical analysis out there about Log4j, and we’ve already posted information about Netskope protections and threat coverage from Netskope Threat Labs. But that’s not this post.

Welcome to the first edition in 2022 of our Cloud Threats Memo! One of the key findings of our Cloud and Threat Report – January 2022 is the leadership of Google Drive as the most exploited cloud app for the distribution of malware (and for the record, guess which service ranks at number two—spoiler alert: it is a cloud storage service from Microsoft). Unsurprisingly, this is not the only way in which threat actors can exploit these and other cloud services.

Companies are increasingly moving their IT operations to IaaS (infrastructure-as-a-service) solutions. Gartner estimates that by 2022, about 60% of business entities will be leveraging cloud-managed offerings, doubling the recorded use in 2018. Cloud offerings like Amazon Web Services (AWS) are generally secure. But since IaaS uses a shared security model, there's a great chance of data security issues, including cybersecurity and workload concerns.

Managing the security of your Amazon Web Services (AWS) environment requires constant vigilance. Your strategy should include identifying potential threats to your environment and proactively monitoring for vulnerabilities and system weaknesses that malicious actors might exploit. In a complex environment—such as your AWS account with a multitude of services, coupled with various architectures and applications—the ideal solution should be both comprehensive and straightforward.

Security Service Edge (SSE) describes the evolving security stack crucial to a Secure Access Service Edge (SASE) journey, with core platform requirements that include CASB, SWG, and ZTNA capabilities. SASE is an architecture—really, a long-term journey that will change how we all think about security and networking. But SSE, as part of SASE, is a set of cloud-delivered security services you can acquire and make the most of today.

In November of 2021, we described several techniques used by attackers to deliver malware through infected Microsoft Office files. In addition to exploits like CVE-2021-40444, these infected documents frequently abuse VBA (Visual Basic for Applications) to execute their techniques, regardless of the final payload. Attackers also often use extra layers of protection to evade signature-based detections, like constructing PowerShell scripts and WMI namespaces at runtime, as done by Emotet.