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Rolimno.Msvcmon.dll

Rolimno

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module Rolimno.Msvcmon.dll by Rolimno has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Rolimno  (signed and verified)

Version:
1.0.5414.39159

MD5:
74326096ae1596f3dddbf0056003a930

SHA-1:
b468468154468aeb4b5d69632e541355e639ab26

SHA-256:
3315c7f2caa9fe7edb6d23ac620262de054c5ae2bd9f87cf6c06c71c53a419e9

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
2/26/2025 4:46:19 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.12.9

File size:
616.8 KB (631,576 bytes)

Product version:
1.0.5414.39159

Original file name:
Rolimno.Msvcmon.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\rolimno\bin\plugins\rolimno.msvcmon.dll

Digital Signature
Signed by:
Rolimno

Authority:
VeriSign, Inc.

Valid from:
8/13/2013 5:30:00 AM

Valid to:
8/14/2015 5:29:59 AM

Subject:
CN=Rolimno, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Rolimno, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0D2645238961D2084208FC4B5B89E7FD

File PE Metadata
Compilation timestamp:
10/29/2014 4:16:05 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x9A1E4

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 10, 00, 00, 00, 18, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00, 00, 00, 30, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, 00, 00, 00, 48, 00, 00, 00, 54, C0, 09, 00, 94, 02, 00, 00, 00, 00, 00, 00, 94, 02, 34, 00, 00, 00, 56, 00, 53, 00, 5F, 00, 56, 00, 45, 00...
 
[+]

Entropy:
6.5080

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
608.5 KB (623,104 bytes)

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