About “Trojan.Win32.Zenpak.ahah” infection

The Trojan.Win32.Zenpak.ahah 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.Zenpak.ahah virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Attempts to connect to a dead IP:Port (3 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
• Attempts to modify proxy settings
• Collects information to fingerprint the system
• Anomalous binary characteristics

Related domains:

How to determine Trojan.Win32.Zenpak.ahah?

File Info:
crc32: 023938A5
md5: de5a089343305187690a0703a0b2c0a2
name: tmpec0d516_
sha1: 90d00f2d5800c6b6705af5e425e2e92f8c39b4de
sha256: 547cf65bde4bf3a999165753f0d640d55f6aa5b38f36fb261d47ae4f0ba5d554
sha512: e885c9cb1239212dea10609f5a47ae18911686e70bdf2e7921e2f4e436ec574c0eab86f74fedf54f0e45bc3c37b8ab40a8657767a8d86bd03218e0f722c654f8
ssdeep: 12288:m2UML/axdZP+4gSyUaYV6TaHH7FNQTLBR32Yrm2T:m2UM7wg1Ua86sH5NQTVR32Ya2T
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.Zenpak.ahah also known as:

How to remove Trojan.Win32.Zenpak.ahah?

• 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.