#googletagmanager — Public Fediverse posts

GrelosGTM group abuses Google Tag Manager to attack e-commerce websites

A cybercriminal group dubbed GrelosGTM has been exploiting Google Tag Manager's legitimate functionality to compromise e-commerce websites. First detected in early April 2020, the group evolved their tactics by February 2021 to inject malicious Google Tag Manager scripts into targeted sites. The campaign affected at least seven websites running Magento CMS across Belgium, Italy, the United Kingdom, and the United States. Attackers inject custom Google Tag Manager scripts that load multi-stage JavaScript payloads through WebSocket connections. The final payload deploys a heavily obfuscated JavaScript sniffer designed to steal customers' payment card information during checkout using fake payment forms, with stolen data exfiltrated to attacker-controlled servers.

Pulse ID: 6aa8feaea12952dc69b265df
Pulse Link: https://otx.alienvault.com/pulse/6aa8feaea12952dc69b265df
Pulse Author: AlienVault
Created: 2026-09-15 08:15:42

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#GoogleTagManager #Italy #JavaScript #Magento #OTX #AlienVault

FYI: X adds GTM integration and live diagnostics to its rebuilt Ads Manager: X today added Google Tag Manager integration, unified Conversion API developer tools, and a real-time diagnostics dashboard to its rebuilt Ads Manager platform. https://ppc.land/x-adds-gtm-integration-and-live-diagnostics-to-its-rebuilt-ads-manager/ #AdsManager #GoogleTagManager #DigitalMarketing #ConversionAPI #MarketingTools

ICYMI: X adds GTM integration and live diagnostics to its rebuilt Ads Manager: X today added Google Tag Manager integration, unified Conversion API developer tools, and a real-time diagnostics dashboard to its rebuilt Ads Manager platform. https://ppc.land/x-adds-gtm-integration-and-live-diagnostics-to-its-rebuilt-ads-manager/ #DigitalMarketing #GoogleTagManager #AdsManager #MarketingTools #Integration

X adds GTM integration and live diagnostics to its rebuilt Ads Manager: X today added Google Tag Manager integration, unified Conversion API developer tools, and a real-time diagnostics dashboard to its rebuilt Ads Manager platform. https://ppc.land/x-adds-gtm-integration-and-live-diagnostics-to-its-rebuilt-ads-manager/ #DigitalMarketing #AdsManager #GoogleTagManager #MarketingTools #ConversionAPI

ICYMI: Google Tag Manager and Google tag are merging - what actually changes: Google plans to upgrade Google tags into full GTM containers, add a no-code visual tagging tool, and redesign the Tag Manager interface for all advertisers. https://ppc.land/google-tag-manager-and-google-tag-are-merging-what-actually-changes/ #GoogleTagManager #DigitalMarketing #TagManagement #NoCode #MarketingTools