Get expert threat analysis weekly. Sign up to receive our Threat Briefing:
Date: 8/8/2022
New malware named Ducktail is being delivered via phishing campaigns, aiming to hijack Facebook business profiles and advertising platform accounts. This attack starts by actors targeting LinkedIn account users and using the Ducktail malware to pivot and hijack Facebook sessions by stealing browser cookies on the systems used by victims of the phishing campaign.
The primary objective for threat actors behind this malware is financial gain. The data accessed after successfully compromising an account include credit card or other transactional data. The malware also can extract information from any web browser on an impacted system. This may consist of accounts outside Facebook.
This phishing campaign may target individuals that have access to business Facebook accounts, such as those in managerial, digital marketing, digital media, and human resources roles.
These individuals should be educated on this threat specifically (also generally) about the indicators of phishing emails.
Administrators should ensure that end user systems are protected by Endpoint Detection & Response solutions.
Lastly, users should ensure that multifactor authentication is enabled for business social media accounts.
For more information, fill out the form below and we will be in touch shortly
Security researchers at EclecticIQ have recently observed Emotet delivered through Microsoft Excel macros. These macros utilize the regsvr32[.]exe binary to install the malicious software. The first stage of these attacks is a spam email campaign containing Office XLS documents with embedded macros. Opening these files will ask the user to ‘Enable Content’ to run the macro(s). Once enabled, these macros download the Emotet Loader, which drops the Emotet payload into memory.
Emotet is an incredibly versatile malware strain with ever-evolving tactics to evade security tools and maintain persistence on compromised hosts. Once installed, Emotet is a powerful command and control platform that allows threat actors to conduct post-compromise actions.
Because of Emotet’s footprint in the modern-day malware landscape, the security community has created many techniques to defend against it. Maintaining updated rules in endpoint detection and response (EDR) tools can assist organizations in detecting Emotet infections. This includes public listings of Indicators of compromise (IoCs) by the MITRE group and YARA detection tools via VirusTotal.com.
Additionally, organizations should leverage threat intelligence feeds to get quick updates on Emotet’s capabilities and attack paths.
Sources
https://cyware.com/news/recent-emotet-infections-exploit-macros-93bdd854
https://blog.eclecticiq.com/emotet-downloader-document-uses-regsvr32-for-execution
According to Dr. Johannes Ullrich from the SANS Internet Storm Center, Exim, a popular Linux mail server application, was silently patched last week. This patch fixed a buffer overflow vulnerability but was not labeled as a security update. Exim versions prior to 4.95 are vulnerable. Details on the vulnerability are available on Github.
Because this patch was not labeled as a security update, many Linux distributions will be slow to roll out packages with the updated Exim code. Additionally, vulnerability scanners may not detect this vulnerability because it isn’t yet labeled as ‘security relevant. According to Dr. Ullrich, the details provided about this vulnerability on GitHub can be used to develop an exploit.
Upgrade Exim to the latest version; disabling sender hostname resolution may be an effective workaround (this is a good lesson in patching strategies).
GreyCastle Security recommends ensuring that all patches, including low-priority ones, are included in vulnerability management programs.
Sources
SANS Daily Network Security Podcast (Stormcast) for Monday, August 8th, 2022 – SANS Internet Storm Center
NVD – CVE-2022-37452 (nist.gov)
exim_overflow/README.md at main · ivd38/exim_overflow (github.com)
A new IoT botnet malware named RapperBot targets Linux servers running SSH services. This botnet is similar to the well-known Mirai botnet and has built-in capability to brute-force SSH credentials and some advanced capabilities.
Once a system is compromised via RapperBot SSH brute-force and the credentials are sent back to command-and-control servers, the compromised system becomes part of the botnet, which can then be used for carrying out DDoS attacks.
Perform periodic scanning to identify and review services hosting in your network that are available over the Internet. Restrict or remove services that are not necessary for business operations, especially for IoT devices. Ensure that default SSH credentials are always changed before implementing systems.
Sources
https://thehackernews.com/2022/08/new-iot-rapperbot-malware-targeting.html
For strategic clients, your vCISO will add this to your next Office Hours for further discussion. However, if you have an immediate need, concern, or question, please reach out to them directly.
For non-strategic clients, please reach out to your Advisor for further discussion.
For those not yet clients of GreyCastle Security, please click the “Contact Us” button below and we’ll be glad to provide assistance as well as answer any questions you might have.
Offerings
Industries
Compliance
Copyright © 2023 GreyCastle Security. All Rights Reserved
800-403-8350Copyright © 2022 GreyCastle Security. All Rights Reserved
Ho Chin is Chief Financial Officer at GreyCastle Security. In this role, Ho leads Finance, HR, IT and Professional Development. As part of the executive leadership team, Ho works to establish the company’s overall strategy and ensure proper execution of the supporting initiatives pertaining to the above areas of responsibility.
Prior to joining GreyCastle Security, Ho led finance and administrative functions at multiple private equity and venture-backed portfolio companies across multiple industries. Ho holds a bachelor’s degree in Accounting from Pennsylvania State University in Centre County, Pennsylvania and a master’s degree in Business Administration from the Wharton School of Business at the University of Pennsylvania in Philadelphia, Pennsylvania.
Dan Kalil is Chief Executive Officer (CEO) and Board Chairman at GreyCastle Security. In this role, Dan provides vision, leadership and strategies that drive GreyCastle Security’s position as an industry leader. With an emphasis on customer success, Dan’s profitable growth model leverages a customer-centric business approach that balances employee wellbeing and social responsibility.
Prior to becoming CEO, Dan served as the company’s Chief Strategy Officer, during which he supported multiple acquisitions and helped the organization achieve substantial sales growth. In addition to serving as CEO at GreyCastle Security, Dan continues to hold the position of Chief Commercial Officer (CCO) at Assured information Security (AIS) in Rome, New York, a company he co-founded in 2001.
Over the course of the last 22 years, Dan has been committed to advancing the state of cybersecurity and has played an instrumental role in the identification and development of critical, next-generation cyber capabilities. He has held positions in almost every facet of cybersecurity, beginning as a computer forensic examiner and progressing through the management and executive leadership ranks. In addition to co-founding AIS, Dan has facilitated multiple cybersecurity startups, raised investment capital and has served in various lead and support roles toward the acquisition of five companies in the last eight years.
Dan has a bachelor’s degree in Cybersecurity and a master’s degree in Cybersecurity from Utica College in Utica, New York.
Michael Stamas is an entrepreneur, board member, Vice President and a founder of GreyCastle Security. With more than two decades of experience in the technology sector, Mike pairs his management and business development skills with a deep understanding of cybersecurity. Mike brings a unique brand of risk-based advising to GreyCastle clients and prospects.
Mike holds certifications in numerous security and technology related areas, including the Department of Homeland Security and other security technologies like Symantec, Cisco and Microsoft.
Mike plays an active role in his community and serves as a board member and Vice President of InfraGard Albany as well as an advisory board position with the Capital Region YMCA.
Mike has been recognized for his numerous achievements through various honors including the Albany Business Review’s prestigious 40 Under 40 award.
Dan Maynard serves as GreyCastle Security’s Chief Operating Officer, where he currently leads Sales, Marketing and Legal.
Dan has enjoyed a 30+ year career in the Information Technology and Telecommunications industry, during which time he has held various leadership positions for organizations such as Rochester Tel/RCI, Citizens Communications (Frontier), PAETEC Communications, IntegraOptics, tw telecom/Level3 and Centurylink.
In addition to various voice and data technology platforms, he possesses a strong background in leadership development, sales and marketing leadership, transformational leadership and strategic planning. Dan has a thirst for knowledge and as a committed lifelong learner, he encourages and supports professional development initiatives for his teams and continues his involvement with Vistage International.
Dan holds a bachelor’s degree in Biology from Lafayette College in Easton, Pennsylvania, where he was selected as a member of their Athletic Hall of Fame in 2016.
When not at work, Dan enjoys traveling, golfing, attending Utica Comets hockey games and relaxing in the Adirondacks on beautiful Canada Lake with family and friends.
Dan Didier is the Vice President of Solutions and board member at GreyCastle Security.
Dan has been a cybersecurity practitioner for more than 20 years and uses his knowledge and experience to develop cybersecurity solutions that ensure readiness and preparedness.
Dan received his bachelor’s degree in Telecommunications from SUNY Polytechnic Institute in Utica, New York, and graduated Summa Cum Laude with a master’s degree in Information Assurance from Norwich University in Northfield, Vermont.
Our Computer Incident Response Teams (CIRTs) have responded to hundreds of breaches, intrusions, malware infections, thefts, employee investigations, fraud cases and other incidents. Our highly-certified experts have extensive experience in command, coordination and correction of incidents in nearly every industry throughout North America, from local businesses to Fortune 500 international conglomerates.
800-403-8350Francesca LoPorto-Brandow is Director of Culture at GreyCastle Security. In this role, Francesca leads all social responsibility efforts and partnerships and develops effective strategies that promote organizational-wide behaviors and attitudes consistent with a culture of safety, inclusion, teamwork, motivation and high-performance.
Prior to this role, Francesca was Director of People & Culture at GreyCastle and with her leadership, the company’s culture has been recognized by Inc. Magazine as a Nationally recognized Best Workplace, Albany Business Review Best Places to Work and Albany Times Union Top Workplaces.
Before joining GreyCastle Security, Francesca worked as an OD consultant and focused on strategic culture change at The Kaleel Jamison Consulting Group, Inc. for more than six years. There, she facilitated client education sessions, coached leaders and teams, developed and executed consulting interventions and served as strategy project leader on various client engagements. Her work has taken her into Fortune 100 companies and across borders including Panama, Singapore and beyond.
Francesca is a Lean Six Sigma–certified Green Belt, a proud YWCA-GCR board member and in 2013, she coordinated and emceed the inaugural TEDx Troy—a livestream of TEDCity 2.0. Since 2012, she has coordinated and emceed the Troy 100 Forum, a biannual forum for government, religious and community leaders to discuss issues vital to the future of Troy, New York.
Bilingual in English and Italian, Francesca holds a bachelor’s degree in Management and Technology from the Rensselaer Polytechnic Institute’s Lally School of Management & Technology. She was awarded Cybersecurity Recruiter of the year North America in 2017 by the Cybersecurity Excellence Awards.
Jamie Aiello is Senior Vice President of Services and Product Management at GreyCastle Security. In this position, Jamie is responsible for leading a high performing and well-balanced team that is ultimately responsible for the identification, selection, execution and successful performance of our company’s diverse portfolio of cybersecurity offerings.
Prior to joining GreyCastle Security, Jamie has held leadership positions with Annese and Associates, ConvergeOne and BlueSky IT Partners with a focus on delivering cost effective information technology solutions for companies across multiple verticals.
Jamie holds a bachelor’s degree in Political Science from Le Moyne College in Syracuse, New York, a master’s degree in Business Administration from Gardner-Webb University in Boiling Springs, North Carolina and a master’s degree in Computer Information Systems from University of Phoenix in Phoenix, Arizona.
