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PacFunction.GCUpdate.dll

PacFunction

This is the Google Chrome extension manager/updater for the Yontoo PacFunction branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module PacFunction.GCUpdate.dll by PacFunction has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
PacFunction  (signed and verified)

Version:
1.0.5434.33526

MD5:
8975879337c8a77fcc90c7eab58e4df0

SHA-1:
7820bc25f0979267349a43ba9f6ac6d5cebb9a58

SHA-256:
1df05e5f54905f15cd3f51f279cf49f6f400e0b4f21986ddb8cd523f074b75a0

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
4/24/2024 3:37:21 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.10.2

File size:
1.6 MB (1,648,416 bytes)

Product version:
1.0.5434.33526

Original file name:
PacFunction.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\pacfunction\bin\plugins\pacfunction.gcupdate.dll

Digital Signature
Signed by:
PacFunction

Authority:
VeriSign, Inc.

Valid from:
1/9/2014 1:00:00 AM

Valid to:
1/10/2015 12:59:59 AM

Subject:
CN=PacFunction, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=PacFunction, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
4DF47FADF68D2EB9B8A7923DCCC176FF

File PE Metadata
Compilation timestamp:
11/18/2014 3:37:39 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x19254A

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00, 70, 00, 00, 00, 8C, 25, 19, 00, 8C, 07, 19, 00, 52, 53, 44, 53, C0, F6, EA, 40, B0, 14, 7C, 4A, 9D, C1, 42, BC, 38, 19, 1E, 0E, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 68, 75, 33, 6F, 31, 6B, 68, 75, 2E, 68, 6C, 61, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
1.6 MB (1,639,936 bytes)

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