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prestoserversetup.exe

Presto Server

Collobos Software Inc.

The application prestoserversetup.exe, “Presto Server Setup ” by Collobos Software 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 Inno Setup installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.google.com.
Publisher:
Collobos Software   (signed by Collobos Software Inc.)

Product:
Presto Server

Description:
Presto Server Setup

Version:
2.5.2606.0

MD5:
5a5c54aae70d5d08752d4abf4d5aefdd

SHA-1:
1351d7e2f4975fb4d572e0c8efd5f615df04fa75

SHA-256:
5765352d6176d64dcdcd94234d79a9ac5683909d6752df5dccd9962f1faae2c1

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
4/28/2024 4:13:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.CSH (L)
16.12.2.9

File size:
91.5 MB (95,908,832 bytes)

Product version:
2.5.2606.0

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

Digital Signature
Signed by:
Collobos Software Inc.

Authority:
Symantec Corporation

Valid from:
6/13/2016 8:00:00 PM

Valid to:
6/14/2019 7:59:59 PM

Subject:
CN=Collobos Software Inc., O=Collobos Software Inc., L=Chester, S=Virginia, C=US

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
6614CE3D8D72183F484E47037C4AC023

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
1572864:A4nv6K/QfYb/HooV9TbyBbnvjLmgN/fGjQkNV7FKdcCzOSAwg2/6e4EHvH1tbhSK:DSKIEHNT+BHLLNnkNVQYvS/f7/bbhSQx

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
8.0000

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

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

https://www.google.com/url?hl=en&q=https://download.collobos.com/presto25/files/.../prestoserversetup.exe&source=gmail&ust=1479832236000000&usg=AFQjCNE_PkAMzlObh2mB3yWnqq7geN0JaA

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