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A newly uncovered phishing kit known as Spiderman is giving cybercriminals the ability to impersonate dozens of major European banks with just a few clicks, dramatically lowering the skill required to run large-scale financial fraud campaigns.
Its developer touts the kit as a turnkey solution for stealing credentials, one-time passwords (OTPs), and even cryptocurrency seed phrases in real time.
The phishing kit provides attackers with “… more than enough information for account takeover, SIM-swap attacks, credit card fraud, and identity theft,” said Varonis researchers.
Spiderman Phishing Kit Targets Banks Across Europe
Spiderman targets customers across Germany, Spain, Belgium, Austria, and Switzerland, affecting institutions ranging from Deutsche Bank and CaixaBank to ING and Commerzbank.
Its growing adoption — evidenced by a Signal group of roughly 750 users — suggests widespread availability among lower-tier attackers, increasing both the frequency and geographic scope of financial phishing campaigns.
Inside Spiderman’s Full-Stack Phishing Workflow
At its core, Spiderman functions as a multi-brand phishing framework that automates every stage of credential theft.
Once an operator selects the bank they want to impersonate, the kit instantly generates a pixel-perfect clone of the institution’s login page, complete with fields for usernames, passwords, credit card details, and PhotoTAN/OTP prompts.
The operator dashboard displays each victim session in real time — tracking user inputs, IP metadata, and device details.
After a victim enters initial credentials, attackers can trigger additional prompts to harvest more sensitive information, such as credit card numbers, phone details, and OTPs required to authorize transactions.
These real-time workflows significantly increase the success rate of account takeovers, especially in European banking systems where multi-step authentication is standard.
Spiderman also includes advanced anti-analysis features designed to evade security tools and limit exposure.
The kit uses country allowlisting so only targeted regions can access the phishing page, and it applies ISP and ASN filtering to block visits from VPNs, data centers, and known security research networks.
It further restricts access based on device type, ensuring only mobile or desktop users receive the malicious content.
If a visitor appears suspicious or falls outside the allowed criteria, Spiderman automatically redirects them to a benign site, reducing the likelihood of detection.
These controls help the kit evade automated scanners and threat-intelligence crawlers, making detection far more difficult.
What Spiderman Phishing Kits Capture from Victims
Unlike simple phishing templates, Spiderman acts as a full-stack, real-time credential hijacking system, enabling attackers to harvest far more than login pairs.
Captured data often includes:
- Full names, phone numbers, and birthdates
- Credit card and banking details
- PhotoTAN codes for transaction approval
- User agent and device fingerprints
The inclusion of cryptocurrency modules — for Metamask, Ledger, and Exodus — illustrates a growing convergence of banking fraud and crypto theft. These modules capture seed phrases that allow irreversible access to victims’ wallets.
Spiderman’s multi-step approach also allows attackers to maintain a continuous session with each victim, marked by a unique identifier. This helps organize stolen data for later use or resale, increasing the operational efficiency of cybercrime groups.
Essential Controls to Counter Evolving Phishing Threats
Reducing the impact of kits like Spiderman requires a mix of stronger authentication, smarter detection, and coordinated response.
The following steps can help organizations and financial institutions create more resilient defenses against evolving phishing workflows.
- Deploy phishing-resistant MFA and step-up verification to reduce the effectiveness of OTP-stealing kits.
- Strengthen email and domain protections with advanced phishing filters, sandboxing, DMARC enforcement, and spoofing controls.
- Monitor for brand impersonation and spin up rapid takedown workflows for malicious domains and cloned banking pages.
- Use behavioral analytics and transaction anomaly detection to flag unusual devices, locations, or authentication patterns.
- Educate users on region-specific phishing lures and provide clear security indicators that kits cannot easily replicate.
- Leverage threat-intelligence feeds to identify emerging phishing infrastructure, track new kit variants, and quickly surface indicators for internal defenses.
These steps help organizations strengthen their resilience against phishing attacks.
Spiderman is part of a broader trend: turnkey cybercrime kits are closing the gap between sophisticated threat actors and less experienced criminal operators.
With highly automated interfaces, real-time session control, and anti-analysis filters, kits like this accelerate the volume and complexity of financial phishing campaigns across Europe.
As these kits continue lowering the barrier to entry for attackers, many institutions are reassessing how foundational security models — like zero-trust — can better contain the impact of compromised user interactions.
