TrojanDropper:Win32/Microjoin!B removal

The TrojanDropper:Win32/Microjoin!B 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 TrojanDropper:Win32/Microjoin!B virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Dynamic (imported) function loading detected
• Reads data out of its own binary image
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Unconventionial language used in binary resources: Russian
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Sniffs keystrokes
• Created a process from a suspicious location
• Installs itself for autorun at Windows startup
• Uses suspicious command line tools or Windows utilities

How to determine TrojanDropper:Win32/Microjoin!B?

File Info:
name: 7C9CF95BAE056987BD00.mlw
path: /opt/CAPEv2/storage/binaries/46f47c4f10b886115c30901cba5abd5c23b18ffebaa26a63b17e82a6bddb058c
crc32: 2BD0ECE4
md5: 7c9cf95bae056987bd0095ec4da26d61
sha1: 51e3558ba9a5f473c47fd7ade283e03394071889
sha256: 46f47c4f10b886115c30901cba5abd5c23b18ffebaa26a63b17e82a6bddb058c
sha512: b3ecc9cbf25dbe4ee0381c166ffe2b3157f1173f6cd7e8999633699052ef667431aed81c2fa5a739a26044ec4867b220cee0f8cb2d160a6bda00ca0a24cbf17f
ssdeep: 3072:eWUUyBnGYB9YTkd8oD9ViXNI6BqAa0KQt7JtAJdhBbdJe9WoG4i/7Il2Yv:GU8nG49hd8SzKNI7Aa0KQjodJVoKMl2Y
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12C04121B1720C73BC3B9107650D6BFD049AC2416AF5ADBAC6B956F3E2E51338C98FA11
sha3_384: 1e47d3e4c99c6a83bac5e9654a7f547d1a080333a078848377927c7f9b90455685bccff92e68ca0fc51b1dccce157916
ep_bytes: 60be006041008dbe00b0feff57eb0b90
timestamp: 2006-10-09 23:59:00

Version Info:
0: [No Data]

TrojanDropper:Win32/Microjoin!B also known as:

How to remove TrojanDropper:Win32/Microjoin!B?

• 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.