home

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:
154b7e29729f5354fb290b9e4c194dd8

SHA-1:
051e3b6777d451f0a7094bbbdf08f4ccf05e896e

SHA-256:
c67cf68dbd245b1d310c5e519c35bc4b69f4a3b17b77ca2b637a71edd7a70e21

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/23/2024 10:00:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Sien (M)
17.3.7.0

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}\downloads\1stbrowser.exe

Digital Signature
Signed by:
SIEN S.A.

Authority:
GlobalSign nv-sa

Valid from:
2/17/2015 9:45:29 AM

Valid to:
6/12/2016 5:20:39 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 11:17:55 AM

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)

Remove 1stbrowser.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.