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apnstub.exe

AskStub Application

Ask.com

This installer is part of the Ask.com (APN) network which will install the Ask.com branded toolbar or browser extension which will take control of the web browser's search functions. The application apnstub.exe by Ask.com has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the APN Stub installer. It is also typically executed from the user's temporary directory.
Publisher:
Ask.com  (signed and verified)

Product:
AskStub Application

Version:
1.0.0.0

MD5:
24fcf0a911453de00f438de8d5eeef7d

SHA-1:
a3de645cba8317d007a1176d28b0f9db121d7cdd

SHA-256:
0aa1de2415329537d5f3ba5f08634612d7f5ea7f940c60bcca684cdefe765445

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
4/25/2024 11:05:24 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Ask (M)
17.3.12.21

File size:
182.3 KB (186,703 bytes)

Product version:
1.0.0.0

Copyright:
Copyright (C) Ask 2010

Original file name:
AskStub.exe

File type:
Executable application (Win32 EXE)

Installer:
APN Stub

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\apnstub.exe

Digital Signature
Signed by:
Ask.com

Authority:
VeriSign, Inc.

Valid from:
6/17/2008 6:00:00 AM

Valid to:
6/18/2011 5:59:59 AM

Subject:
CN=Ask.com, OU=Distribution, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Ask.com, L=Oakland, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2004 CA, OU=Terms of use at https://www.verisign.com/rpa (c)04, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
286F8A30E2EAC6965B936F826A05305D

File PE Metadata
Compilation timestamp:
12/11/2010 1:14:08 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

Entry address:
0x2906

Entry point:
E9, 1A, 69, 00, 00, E9, 79, FE, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, C8, 30, 41, 00, 89, 0D, C4, 30, 41, 00, 89, 15, C0, 30, 41, 00, 89, 1D, BC, 30, 41, 00, 89, 35, B8, 30, 41, 00, 89, 3D, B4, 30, 41, 00, 66, 8C, 15, E0, 30, 41, 00, 66, 8C, 0D, D4, 30, 41, 00, 66, 8C, 1D, B0, 30, 41, 00, 66, 8C, 05, AC, 30, 41, 00, 66, 8C, 25, A8, 30, 41, 00, 66, 8C, 2D, A4, 30, 41, 00, 9C, 8F, 05, D8, 30, 41, 00, 8B, 45, 00, A3, CC, 30, 41, 00, 8B, 45, 04, A3, D0, 30, 41, 00, 8D, 45, 08, A3, DC, 30, 41...
 
[+]

Entropy:
7.2390

Packer / compiler:
Xtreme-Protector v1.05

Code size:
50 KB (51,200 bytes)

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