What We Do
How we do it
Resources
SECURITY ADVISORIES
Oct 18, 2021
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…
Read More
View all Advisories →
Company
ABOUT eSENTIRE
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
LATEST PRESS RELEASE
Oct 12, 2021
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.…
Read More
Partners
PARTNER PROGRAM
Partners
Our award-winning partner program offers financial rewards, sales and marketing tools and personalized training. Accelerate your business and grow your revenue by offering our world-class Managed Detection and Response (MDR) services.
Learn about our Partner Program
PARTNER RESOURCES
Apply today to partner with the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.
Search
Resources
Security advisories — Jan 11, 2020

UPDATE: The Potential for Iranian Cyber Response

**UPDATE**

The eSentire Security Operations Center (SOC) continues to operate with a heightened state of awareness pertaining to the evolving threat of Iranian based attacks, in addition to its continuous monitoring of known and emerging threats.

Our teams are actively monitoring reports related to events that have become known to us through our various intelligence sharing sources and will continue to take action to protect eSentire customers.

Specifically, the focus on Iranian activity has been amplified by a recent wiper malware, Dustman wiper, linked to a suspected Iranian APT group. This attack is not believed to be a direct response to the January 2nd death of the Iranian General, as it occurred on December 29, 2019.

The eSentire SOC is currently operating under the latest guidance to protect our customers from this potential threat. A separate Security Advisory on Dustman is to follow.

As noted below in Tuesday’s advisory, we recommend the following:

Customers are advised to maintain a heightened level of awareness and report suspicious activity to the eSentire SOC.

Ensure all externally facing systems are patched [1]

Refer to the Recommended Actions section of Alert (AA20-006A) from the Cybersecurity and Infrastructure Security Agency (CISA) for best security practices.

[1] https://www.us/cert.gov/ncas/alerts/aa20-01a

---

The Threat

On January 4th, 2020, the Department of Homeland Security issued an official summary of the escalation and threats to the United States following the targeted US airstrike that killed the Iranian General, Qasem Soleimani on January 2nd, 2020 [1]. Iranian leadership has promised retaliation for the strike which may take the form of both physical and cyber operations. Historically, suspected Iranian APT groups have targeted both governments and private businesses [2]. There is the possibility that organizations previously compromised by Iranian APT groups will be targeted with destructive malware, as past unidentified compromises would allow for fast retaliatory actions. eSentire has not observed any increase in attacks linked to this topic across its customer base.

What we're doing about it

What you should do about it

Additional information

Suspected APT Groups Linked to Iran

APT Group Suspected APT Groups Linked to Iran TTPs
APT33

Aviation, Energy

https://attack.mitre.org/groups/G0064/
APT34

Financial, Government, Energy, Chemical, Telecommunications

https://attack.mitre.org/groups/G0049/
APT35

Energy, Government, Technology

(primarily targeting middle eastern companies/governments)

https://attack.mitre.org/groups/G0059/
APT39

Telecommunications, Travel

(Focus on information gathering)

https://attack.mitre.org/groups/G0087/
MuddyWater

Telecommunications, Government, Oil

https://attack.mitre.org/groups/G0069/

References

[1] https://www.washingtonpost.com/world/national-security/with-trumps-approval-pentagon-launched-cyber-strikes-against-iran/2019/06/22/250d3740-950d-11e9-b570-6416efdc0803_story.html

[2] https://www.us-cert.gov/ncas/alerts/aa20-006a

[3] https://www.washingtonpost.com/world/national-security/defense-secretary-says-iran-and-its-proxies-may-be-planning-fresh-attacks-on-us-personnel-in-iraq/2020/01/02/53b63f00-2d89-11ea-bcb3-ac6482c4a92f_story.html

[4] https://www.mcafee.com/blogs/other-blogs/mcafee-labs/shamoon-attackers-employ-new-tool-kit-to-wipe-infected-systems/

[5] https://threatpost.com/hackers-deface-u-s-gov-website-with-pro-iran-messages/151559/

[6] https://twitter.com/cyberwar_15/status/1214530559558352896