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1stbrowseruninstall.exe

SienBrowser

SIEN S.A.

This is the SIEN AppScion Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application 1stbrowseruninstall.exe, “SIEN Browser Installer” by SIEN S.A 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 SIEN SuperInstall installer.
Publisher:
SIEN  (signed by SIEN S.A.)

Product:
SienBrowser

Description:
SIEN Browser Installer

Version:
14.7.25.0

MD5:
5622c79311b5f9c9a16c24af611490d9

SHA-1:
8836d59b4a19859a90ac21a82e5876d9ef29e1b2

SHA-256:
6f4376f7b6f1189d1376050f13c23ecc725c0db71ec1d176fa9c884f665916ea

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.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
5/18/2024 1:55:37 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Sien (M)
17.3.10.16

File size:
1015.3 KB (1,039,616 bytes)

Product version:
14.7.25.0

Copyright:
(c)SIEN S.A. All rights reserved.

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
SIEN SuperInstall

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\1stbrowseruninstall\1stbrowseruninstall.exe

Digital Signature
Signed by:
SIEN S.A.

Authority:
GlobalSign nv-sa

Valid from:
2/17/2015 12:45:29 PM

Valid to:
6/12/2016 10:20:39 AM

Subject:
E=support@sien.com, CN=SIEN S.A., O=SIEN S.A., L=Paris, C=FR

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112158A643D1C958507AAB7FE826772BFA60

File PE Metadata
Compilation timestamp:
7/2/2015 4:17:55 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x7E4DC

Entry point:
E8, A1, A7, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 14, 85, F6, 75, 04, 33, C0, EB, 6D, 8B, 45, 08, 85, C0, 75, 13, E8, AD, 55, 00, 00, 6A, 16, 5E, 89, 30, E8, F4, AD, 00, 00, 8B, C6, EB, 53, 57, 8B, 7D, 10, 85, FF, 74, 14, 39, 75, 0C, 72, 0F, 56, 57, 50, E8, BC, 38, 00, 00, 83, C4, 0C, 33, C0, EB, 36, FF, 75, 0C, 6A, 00, 50, E8, DA, 05, 00, 00, 83, C4, 0C, 85, FF, 75, 09, E8, 6C, 55, 00, 00, 6A, 16, EB, 0C, 39, 75, 0C, 73, 13, E8, 5E, 55, 00, 00, 6A, 22, 5E, 89, 30, E8, A5, AD, 00, 00, 8B, C6...
 
[+]

Code size:
677 KB (693,248 bytes)

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