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uninstall.exe

Irrational Number Applications

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application uninstall.exe by Irrational Number Applications has been detected as adware by 3 anti-malware scanners. This is the uninstaller utility registered in the Windows Control Panel for the program Web Shield by Irrational Number Applications.
Publisher:
Irrational Number Applications  (signed and verified)

MD5:
ed349595042a082bfb135b4a0ddd9f99

SHA-1:
58478605270836d280801b3ba0a2fc49381eb8c4

SHA-256:
ca380dc2f579b90b0f780afe1bdde44d585ce80052631a8dc29d4322f6509651

Scanner detections:
3 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/25/2024 5:59:03 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.PullUpdate
7.1.1

Reason Heuristics
PUP.Yontoo.IrrationalNumberApplications (M)
15.11.2.14

Trend Micro House Call
Suspicious_GEN.F47V1105
7.2.306

File size:
513.4 KB (525,696 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\ProgramData\webshield\uninstall.exe

Digital Signature
Signed by:
Irrational Number Applications

Authority:
VeriSign, Inc.

Valid from:
2/25/2014 7:00:00 PM

Valid to:
2/26/2015 6:59:59 PM

Subject:
CN=Irrational Number Applications, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Irrational Number Applications, L=St. James, S=St. James, C=BB

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:
68A3A4FCF1FE292BB14A5717D3754944

File PE Metadata
Compilation timestamp:
10/14/2014 2:39:13 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:jwIqvWeYVJq5ZlsN9J0X5AKbWBp0mxw/Z0UGcQCBdh:ct+eEh9a5ZWn0mxIGcQCB/

Entry address:
0x411F3

Entry point:
E8, 7F, D3, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, 57, 56, 8B, 74, 24, 10, 8B, 4C, 24, 14, 8B, 7C, 24, 0C, 8B, C1, 8B, D1, 03, C6, 3B, FE, 76, 08, 3B, F8, 0F, 82, 68, 03, 00, 00, 0F, BA, 25, EC, 64, 47, 00, 01, 73, 07, F3, A4, E9, 17, 03, 00, 00, 81, F9, 80, 00, 00, 00, 0F, 82, CE, 01, 00, 00, 8B, C7, 33, C6, A9, 0F, 00, 00, 00, 75, 0E, 0F, BA, 25, 60, 40, 47, 00, 01, 0F, 82, DA, 04, 00, 00, 0F, BA, 25, EC, 64, 47, 00, 00, 0F, 83, A7, 01, 00, 00, F7, C7, 03, 00, 00, 00, 0F, 85, B8, 01, 00, 00, F7, C6, 03...
 
[+]

Entropy:
6.3215

Code size:
380.5 KB (389,632 bytes)

Program Uninstaller
Program name:
Web Shield

Display publisher:
Irrational Number Applications

Display version:
2.7.44

Uninstall string:
C:\ProgramData\WebShield\uninstall.exe /kb=y /ic=0


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