What is “Ransom:Win32/Lorenz.MAK!MTB”?

The Ransom:Win32/Lorenz.MAK!MTB is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Ransom:Win32/Lorenz.MAK!MTB virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Anomalous file deletion behavior detected (10+)
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Enumerates running processes
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• A process created a hidden window
• Executed a command line with /V argument which modifies variable behaviour and whitespace allowing for increased obfuscation options
• Executed a very long command line or script command which may be indicative of chained commands or obfuscation
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Uses Windows utilities for basic functionality
• Attempts to modify desktop wallpaper
• Installs itself for autorun at Windows startup
• Performs a large number of encryption calls using the same key possibly indicative of ransomware file encryption behavior
• Exhibits possible ransomware file modification behavior
• CAPE detected the Lorenz malware family
• Uses suspicious command line tools or Windows utilities
• Suspicious wmic.exe use was detected

How to determine Ransom:Win32/Lorenz.MAK!MTB?

File Info:
name: 7B760F60FFF500D3C7C4.mlw
path: /opt/CAPEv2/storage/binaries/a0ccb9019b90716c8ee1bc0829e0e04cf7166be2f25987abbc8987e65cef2e6f
crc32: BCB660F8
md5: 7b760f60fff500d3c7c408a8bc158e0e
sha1: a4b41efc63460f980130b67eb33c0bd061206744
sha256: a0ccb9019b90716c8ee1bc0829e0e04cf7166be2f25987abbc8987e65cef2e6f
sha512: 13662b1447806779d82a29fbb931ec8d400adacd9074c4bbce8db8afd34bbf0c87e43b7790c1631b8d4edc870dbf5348773beadea59a3f73438cdb072c24ae75
ssdeep: 24576:uTRIYouZxVPjy+Q7WX6nHvjAbDbuqxXePt:tYouZL7y+QqX6nPjRq4t
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1FB356C00B7A29039F8BB06F68EFE555D943DBE91072590CB93C855DE1A39AE0BD31B13
sha3_384: c82f68356226fedd4a528d74974204d4c031d2e0f693180c740a6e5ee598a77c5f9c0281164bd399e7bf958c6e9101f8
ep_bytes: 558bece888fdffff5dc3cccccccccccc
timestamp: 2021-11-11 10:04:32

Version Info:
0: [No Data]

Ransom:Win32/Lorenz.MAK!MTB also known as:

How to remove Ransom:Win32/Lorenz.MAK!MTB?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.