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krabwebuninstall.exe

Krab Web

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application krabwebuninstall.exe by Krab Web has been detected as adware 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 NSIS (Nullsoft Scriptable Install System) installer. This is the uninstaller utility registered in the Windows Control Panel for the program Krab Web by Krab Web.
Publisher:
Krab Web  (signed and verified)

MD5:
9cb0b2d5e654e4b4c9d1193c8e84c7e8

SHA-1:
57e09b3c65e7adc406428301fb0ebb1a93ceb2bd

SHA-256:
cd2a4db3ec28b2ee69da655b5a2ae837c5f1fac9ec17e5426ef240c84c83c980

Scanner detections:
1 / 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:
12/24/2024 3:52:42 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.12.13

File size:
254.2 KB (260,288 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\krab web\krabwebuninstall.exe

Digital Signature
Signed by:
Krab Web

Authority:
DigiCert Inc

Valid from:
6/9/2014 2:00:00 AM

Valid to:
6/17/2015 2:00:00 PM

Subject:
CN=Krab Web, O=Krab Web, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0572744C4944FF55FB05A9A82A78D271

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

Program Uninstaller
Program name:
Krab Web

Display publisher:
Krab Web

Display version:
2014.09.04.132609

Uninstall string:
C:\Program Files (x86)\Krab Web\KrabWebuninstall.exe


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