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Grief Ransomware Gang Claims 41 New Victims, Targeting Manufacturers; Municipalities; & Service Companies in U.K. & Europe
Grief Operators Earned an Estimated 8.5 Million British Pounds in Four Months Key Findings: The Grief Ransomware Gang (a rebrand of the DoppelPaymer Ransomware Group) claims to have infected 41 new victims between May 27, 2021—Oct. 1, 2021 with their ransomware.Over half the companies listed on Grief’s underground leak site are based in the U.K. and Europe. The Grief Ransomware Gang appears to…
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eSentire Launches MDR with Microsoft Azure Sentinel Extending Response Capabilities Across Entire Microsoft Security Ecosystem
Waterloo, ON – Oct. 12, 2021 -- eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announced the expansion of its award-winning MDR services with Microsoft Azure Sentinel, as part of its integration with the complete Microsoft 365 Defender and Azure Defender product suites supporting Microsoft SIEM, endpoint, identity, email and cloud security services.…
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Security advisories — Feb 26, 2019

Reaper IoT Botnet

The Threat
Researchers have discovered a large “Internet of Things” (IoT) botnet with similarities to Mirai. Known as “IoT Troop” or “Reaper”, this threat targets IoT devices by exploiting vulnerabilities on internet-connected devices such as IP cameras and consumer grade routers. Compromised devices could be used to support Distributed Denial of Service attacks (DDoS) against targets worldwide. While this botnet appears to be in the early stages of formation, organizations are encouraged to review the denial of service strategies with service providers.

Recommended Actions

In the event of an attack eSentire recommends:

Additional Information
In mid-September 2017, researchers at Qihoo 360 and Check Point reported an increase in attacks against IoT devices. Similarly, eSentire has observed an upward trend in attacks targeting IoT. Unlike past botnets, strong passwords will not be enough to keep devices safe from infection, as Reaper targets manufacturer vulnerabilities. There is currently no known target for the Reaper botnet, but it can be expected that DDoS attacks would likely target DMZ exposed assets as well as cloud-hosted services.

For more information please visit:
https://www.asd.gov.au/publications/protect/preparing-for-responding-to-ddos-activities.htm
https://www.us-cert.gov/sites/default/files/publications/DDoS%20Quick%20Guide.pdf