{"id":31021,"date":"2025-05-20T16:58:18","date_gmt":"2025-05-20T16:58:18","guid":{"rendered":"https:\/\/gridinsoft.com\/blogs\/?p=31021"},"modified":"2025-05-20T17:17:36","modified_gmt":"2025-05-20T17:17:36","slug":"maksstealer-malware-analysis-removal","status":"publish","type":"post","link":"https:\/\/gridinsoft.com\/blogs\/maksstealer-malware-analysis-removal\/","title":{"rendered":"MaksStealer (MaxCoffe): The Minecraft Mod That’s Actually Stealing Your Passwords"},"content":{"rendered":"

For Minecraft Gamers<\/strong>: MaxCoffe masquerading as a Minecraft performance enhancer! MaksStealer is an information-stealing trojan targeting Minecraft players, especially those on the popular Hypixel SkyBlock server. It promises to boost your gameplay or provide cheats but actually runs off with your passwords, crypto, and Discord account.<\/p>\r\n

I’ve analyzed dozens of these gaming-related malware strains, and this one is particularly sneaky. Let’s break down what MaksStealer is, how it works, and most importantly – how to kick it off your system before it empties your crypto wallets.<\/p>\r\n\r\n

MaksStealer Malware<\/h2>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n
Threat Type<\/td>\r\n Information Stealer, Trojan<\/td>\r\n <\/tr>\r\n
Disguise<\/td>\r\n Minecraft Hypixel SkyBlock performance mod\/cheat<\/td>\r\n <\/tr>\r\n
What It Steals<\/td>\r\n Browser credentials, Discord tokens, cryptocurrency wallets<\/td>\r\n <\/tr>\r\n
Distribution<\/td>\r\n Gaming forums, YouTube comments, Discord servers, pirated software<\/td>\r\n <\/tr>\r\n
Detection Names<\/td>\r\n Trojan.MaxCoffe, Trojan.GenericKD.76438532, Java\/MaksRat.B, HEUR:Trojan-PSW.Java.Stealer.gen<\/td>\r\n <\/tr>\r\n
Risk Level<\/td>\r\n High (financial loss, account theft, privacy breach)<\/td>\r\n <\/tr>\r\n <\/table>\r\n\r\n\r\n\r\n \r\n MaksStealer Infection<\/text>\r\n \r\n \r\n \r\n \r\n \r\n \r\n Gaming Forums<\/text>\r\n “Free Minecraft Mods”<\/text>\r\n \r\n \r\n Download .JAR File<\/text>\r\n “CasinoEssentials.jar”<\/text>\r\n \r\n \r\n User Runs the Mod<\/text>\r\n “Java -jar filename.jar”<\/text>\r\n \r\n \r\n Stealer Activates<\/text>\r\n Runs in background<\/text>\r\n \r\n \r\n Data Collection<\/text>\r\n Browsers, Discord, Crypto<\/text>\r\n \r\n \r\n Data Exfiltration<\/text>\r\n Sends to attacker servers<\/text>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n<\/svg>\r\n

Source: Analysis of MaksStealer behavior from Triage and VirusTotal findings, May 2025<\/em><\/p>\r\n\r\n\r\n

What Is MaksStealer and How Bad Is It?<\/h2>\r\n\r\n

MaksStealer is a Java-based information stealer that’s specifically targeting gamers. It masquerades as a performance enhancement mod or cheat for Minecraft’s Hypixel SkyBlock but is actually harvesting every piece of valuable data it can find. This malware is especially dangerous because it targets multiple data types at once – your passwords, gaming accounts, and cryptocurrency wallets.<\/p>\r\n\r\n

Unlike some malware that announces itself with annoying popups or system slowdowns, MaksStealer works silently in the background. You won’t even know it’s there until your accounts start getting hijacked or your crypto mysteriously disappears. That stealth factor makes it particularly dangerous for everyday users who aren’t constantly monitoring their system processes.<\/p>\r\n\r\n

How This Digital Pickpocket Works<\/h2>\r\n\r\n

Once executed, MaksStealer immediately starts scanning your system for valuable data. It focuses on three main categories:<\/p>\r\n\r\n

1. Web Browser Theft<\/h3>\r\n\r\n

MaksStealer doesn’t play favorites – it hits all major browsers. Chrome, Firefox, Edge, Opera, Brave, Vivaldi, and Yandex are all on its hit list. The malware expertly extracts saved passwords, cookies, autofill data, and browsing history from these browsers.<\/p>\r\n\r\n

Think about all those sites where you’ve clicked “remember password” for convenience. Banking sites, email, social media, online shopping – MaksStealer can now access all of them. It’s like handing over your entire digital identity on a silver platter.<\/p>\r\n\r\n

2. Discord Account Targeting<\/h3>\r\n\r\n

For gamers, Discord is often the communication hub for everything. MaksStealer specifically looks for Discord authentication tokens stored on your computer. These tokens are basically digital keys to your Discord account.<\/p>\r\n\r\n

With your token, attackers can log into your Discord account without needing your password or bypassing two-factor authentication. They can then impersonate you, message your friends with malware links, join private servers, or access private conversations. This aspect is particularly effective for spreading the malware further through gaming communities.<\/p>\r\n\r\n

3. Cryptocurrency Wallet Raiding<\/h3>\r\n\r\n

Perhaps most financially damaging is MaksStealer’s ability to target cryptocurrency wallets. It searches for popular wallet software like Armory, Bytecoin, Coinomi, Exodus, Ethereum, Electrum, Atomic Wallet, and many others. The malware extracts wallet files, private keys, and seed phrases.<\/p>\r\n\r\n

Once attackers have this data, your cryptocurrency can be transferred away in minutes. And due to the decentralized, anonymous nature of crypto transactions, these funds are virtually impossible to recover. One moment your digital wallet is full, the next it’s emptied with no recourse.<\/p>\r\n

\"MaksStealer
MaksStealer code showing targeted browsers for credential theft (Source: Triage analysis<\/a>)<\/figcaption><\/figure>\r\n\r\n

How MaksStealer Spreads: The Bait and Switch<\/h2>\r\n\r\n

Malware distributors are getting creative with their delivery methods. MaksStealer typically spreads through channels that gamers frequently use and trust:<\/p>\r\n\r\n