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1stbrowser.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 1stbrowser.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:
06e02430bf74218c1c61edf998945b8b

SHA-1:
75a3a2414e4542f97f0f47853a7c2fda82833e96

SHA-256:
9a9493c152b524928b786ab5394329a7f0ca1351402b513ff12eaef182b8c647

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:
12/23/2024 10:08:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Sien (M)
17.3.15.23

File size:
1016.8 KB (1,041,176 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}\downloads\1stbrowser.exe

Digital Signature
Signed by:
SIEN S.A.

Authority:
GlobalSign nv-sa

Valid from:
2/17/2015 6:45:29 AM

Valid to:
6/12/2016 3:20:39 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:
7/9/2015 10:17:56 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x7EAD9

Entry point:
E8, A4, 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, B0, 55, 00, 00, 6A, 16, 5E, 89, 30, E8, F5, AD, 00, 00, 8B, C6, EB, 53, 57, 8B, 7D, 10, 85, FF, 74, 14, 39, 75, 0C, 72, 0F, 56, 57, 50, E8, BF, 38, 00, 00, 83, C4, 0C, 33, C0, EB, 36, FF, 75, 0C, 6A, 00, 50, E8, 0D, 06, 00, 00, 83, C4, 0C, 85, FF, 75, 09, E8, 6F, 55, 00, 00, 6A, 16, EB, 0C, 39, 75, 0C, 73, 13, E8, 61, 55, 00, 00, 6A, 22, 5E, 89, 30, E8, A6, AD, 00, 00, 8B, C6...
 
[+]

Code size:
678.5 KB (694,784 bytes)

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