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Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
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September 19, 2023
Severity High Analysis Summary A new information-stealing malware called Mystic Stealer emerged in April 2023, gaining popularity in cybercrime circles. It targets various web browsers, browser […]September 19, 2023Rewterz Threat Alert – BlackCat/ALPHV Ransomware Group Allegedly Encrypted Over 100 MGM ESXi Servers
Severity High Analysis Summary An affiliate of the BlackCat ransomware group, also known as APLHV, recently carried out a significant cyberattack on MGM Resorts, leading to […]September 19, 2023Severity High Analysis Summary APT37, also known as ScarCruft or Red Eyes, is a state-sponsored cyber espionage group originating from North Korea. The group has been […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
September 19, 2023Severity High Analysis Summary A new information-stealing malware called Mystic Stealer emerged in April 2023, gaining popularity in cybercrime circles. It targets various web browsers, browser […]September 19, 2023Rewterz Threat Alert – BlackCat/ALPHV Ransomware Group Allegedly Encrypted Over 100 MGM ESXi Servers
Severity High Analysis Summary An affiliate of the BlackCat ransomware group, also known as APLHV, recently carried out a significant cyberattack on MGM Resorts, leading to […]September 19, 2023Severity High Analysis Summary APT37, also known as ScarCruft or Red Eyes, is a state-sponsored cyber espionage group originating from North Korea. The group has been […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – ProLock Ransomware Exfiltrates Data and Encrypts Files
September 2, 2020Rewterz Threat Advisory – CVE-2020-4637 – IBM Resilient SOAR information disclosure
September 2, 2020
Severity
Medium
Analysis Summary
Researchers have published their analysis of a web skimmer that uses the Telegram API for exfiltration. As with other skimmers, the attack begins when a commerce site is compromised via a vulnerability in their software. Once access is gained, malicious JavaScript code is injected into the website and will be executed on checkout pages. When a user enters data into that checkout page, it’ll be harvested and encrypted. It is then sent in a POST request to a hardcoded Telegram bot and channel via the Telegram API. The code also passes the entered data to the legitimate payment processor in order to complete the transaction so that the malicious activity is more likely to go unnoticed. While the Telegram API has been used by other malware authors to exfiltrate data, this is the first case in which is has been observed as part of a web skimmer.
Impact
Data exfiltration
Remediation
- Keep applications and operating systems running at the current released patch level.
- Ensure anti-virus software and associated files are up to date.