Security researchers at Rapid7 have identified the re-emergence of SantaStealer, a malware-as-a-service infostealer that is being actively promoted on Telegram and hacker forums. SantaStealer is a rebranded version of the earlier BluelineStealer malware and is marketed as an in-memory malware designed to evade file-based detection. Despite claims of advanced stealth, analysis revealed that the malware is not particularly sophisticated, with leaked samples being easy to analyze and showing weak operational security.
SantaStealer features 14 modular components capable of stealing browser data, credentials, cryptocurrency wallets, messaging app data, documents, and screenshots. The stolen data is archived in memory before being exfiltrated. The malware is offered via subscription, with prices set at $175 per month for basic access and $300 for premium. This resurgence highlights ongoing threats to digital asset security, particularly as infostealer malware continues to evolve and target cryptocurrency users and platforms.

Pull IOCs and campaign context straight into your stack.
6 events from the most recent confirmed update back to the earliest known activity.
The UK government announced plans to fully regulate cryptocurrencies by 2027. The stated goal was to improve consumer protection and transparency in the sector.
Binance warned users about fraudulent listing agents claiming to influence token listings. The exchange said it had blacklisted seven entities and offered rewards for evidence of misconduct.
Researchers reported that SantaStealer had resurfaced as a malware-as-a-service infostealer and identified it as a rebranded version of BluelineStealer. Their analysis said the malware's advertised stealth capabilities were overstated and its operational security was weak.
Federal prosecutors expanded fraud and money laundering charges against Rodney Burton, also known as 'Bitcoin Rodney,' over his alleged role in the HyperFund crypto scheme. The scheme was described as involving about $1.8 billion.
Terraform Labs founder Do Kwon was sentenced to 15 years in prison for his role in the TerraUSD collapse. The case stems from the failure that wiped out roughly $40 billion from the crypto market.
Authorities seized the E-Note cryptocurrency platform, alleging it was used to launder more than $70 million in illicit proceeds. They also indicted alleged owner Mykhalio Petrovich Chudnovets in connection with the operation.
Vulnerabilities, threat actors, malware, products, organizations, breaches, and observables Mallory has linked to this story. Indicator values are masked here and available in full in the app.
Indicator values are masked on this page. See the values in Mallory Domains, IPs, hashes, and URLs are exportable to your SIEM.
Pull the IOCs, campaigns, and victimology behind this family, ready to push into your SIEM and EDR.
2 references tracked. Mallory keeps watching after this page renders.
Map indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.