What is “Trojan:Win32/Ymacco.AA00”?

The Trojan:Win32/Ymacco.AA00 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 Trojan:Win32/Ymacco.AA00 virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Attempts to connect to a dead IP:Port (2 unique times)
• Presents an Authenticode digital signature
• Creates RWX memory
• Mimics the system’s user agent string for its own requests
• Possible date expiration check, exits too soon after checking local time
• A process attempted to delay the analysis task.
• A named pipe was used for inter-process communication
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• A process created a hidden window
• Performs some HTTP requests
• Uses Windows utilities for basic functionality
• Executed a process and injected code into it, probably while unpacking
• A system process is generating network traffic likely as a result of process injection
• Installs itself for autorun at Windows startup
• Checks the version of Bios, possibly for anti-virtualization
• Checks the CPU name from registry, possibly for anti-virtualization
• Collects information to fingerprint the system
• Anomalous binary characteristics

Related domains:

How to determine Trojan:Win32/Ymacco.AA00?

File Info:
crc32: 9FC3DC1C
md5: 12657dfc0594d9c532f0148e2a7c0686
name: tmpcwc4ej_x
sha1: 70fa9709f59fc5fb39dd3c4a0f5fec20eebf7f92
sha256: 00ae84e89985a3bd29268337952ecb691e338bd8f1fc4bf0f43b04dbd9ac1978
sha512: 609b024a70d869259a8b69b27c1cc4d37ebf5c950edc8194eee585521b4f7da020fff9a7ccf3eb740f8708171b68ecc1cf286df4ca6e09b82bab51a43918de0e
ssdeep: 12288:b2UML/axdZPF/evu3xbKSq8H7KNQTLBR32Yrm2j:b2UM7A6u3MwHeNQTVR32Ya2j
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: RDPClip
FileVersion: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7601.17514
FileDescription: RDP Clip Monitor
OriginalFilename: RDPClip.exe
Translation: 0x0409 0x04b0

Trojan:Win32/Ymacco.AA00 also known as:

How to remove Trojan:Win32/Ymacco.AA00?

• 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.