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rsterm_installer.exe

rsterm_installer

WebSys, s.r.o.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application rsterm_installer.exe, “rsterm_installer Setup” by WebSys, s.r.o 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 installCore installer. The file has been seen being downloaded from inst.avg.com.
Publisher:
windows7download.com  (signed by WebSys, s.r.o.)

Product:
rsterm_installer

Description:
rsterm_installer Setup

Version:
1,18,0,2810

MD5:
97e12f7a476a2bc27ae1734aa5d0fcd7

SHA-1:
ae3bbf83d8190a9fe6b2fa593a7d96a6e3cd5ff3

SHA-256:
f0dbc6f66e2016aaa3f814c2dd1025ff54f0daf3e16ed9d462da06d3c146a425

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore monetization platform to install additional offers that might include adware.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/24/2024 6:56:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.WebSyssro.Installer (M)
15.11.4.18

File size:
361.6 KB (370,248 bytes)

Product version:
1,18,0,2810

Copyright:
Copyright © 2012

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\rsterm_installer.exe

Digital Signature
Signed by:
WebSys, s.r.o.

Authority:
COMODO CA Limited

Valid from:
3/20/2013 6:00:00 PM

Valid to:
3/21/2015 5:59:59 PM

Subject:
CN="WebSys, s.r.o.", O="WebSys, s.r.o.", STREET=Namestie sv. Martina 9, L=Holíč, S=SK, PostalCode=908 51, C=SK

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00DD73B25D7DEDED24BD3E70AEEA691C96

File PE Metadata
Compilation timestamp:
8/14/2012 7:05:18 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
7.10

CTPH (ssdeep):
6144:gml12U1csNzbGkVQoM4cMQwzwvKHHNcvhpFA6HNKMPpQpvGImbvrOj:gml12U1hPq2AwzwyHHWv3FA6HN7PcO1I

Entry address:
0x1000

Entry point:
55, 8B, EC, 81, EC, 18, 04, 00, 00, 53, 56, 57, BE, A4, 30, 40, 00, 8D, BD, E8, FB, FF, FF, A5, A5, A5, 6A, 7E, 66, A5, 59, 33, C0, 8D, BD, F6, FB, FF, FF, F3, AB, 66, AB, BB, 04, 01, 00, 00, 53, 8D, 85, E8, FB, FF, FF, 50, FF, 15, 5C, 30, 40, 00, 66, 83, A5, F0, FD, FF, FF, 00, 33, C0, B9, 81, 00, 00, 00, 8D, BD, F2, FD, FF, FF, F3, AB, 66, AB, 8D, 85, F0, FD, FF, FF, 50, 8D, 85, E8, FB, FF, FF, 50, C7, 45, F8, FD, FF, FF, FF, E8, 0F, 01, 00, 00, 84, C0, 59, 59, 74, 15, 8D, 75, F8, 8D, BD, F0, FD, FF, FF...
 
[+]

Entropy:
7.9172

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file rsterm_installer.exe has been seen being distributed by the following URL.

http://inst.avg.com/serve/dyndl.php?&content=rsterm.zip&filename=rsterm_installer&url=http://TheByteWorks.com/.../rsterm.zip&pub=275&pid=3029425&hash=c969480ed9466ce9577d88c7d90e5057f305c85f

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