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rsearch.dll

OPEN.co., ltd

The module rsearch.dll by OPEN.co., ltd has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘&RecentSearch Helper Object’.
Publisher:
GoodJoy  (signed by OPEN.co., ltd)

Version:
1.0.0.1

MD5:
84b15a8891b1db8cbcb8477aca9117e0

SHA-1:
39b81dde91b285fc80f0fe53210fd51de308a4b1

SHA-256:
fccc15e4aec4667745b97c6b44347057833b9cf41b83d85ff9f2b610d452f497

Scanner detections:
1 / 68

Status:
Adware

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.

Analysis date:
5/1/2024 11:53:30 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.12.26.14

File size:
659 KB (674,784 bytes)

Product version:
1.0.0.0

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\roaming\recentsearch\rsearch.dll

Digital Signature
Signed by:
OPEN.co., ltd

Authority:
Thawte, Inc.

Valid from:
11/11/2010 9:00:00 AM

Valid to:
12/12/2011 8:59:59 AM

Subject:
CN="OPEN.co., ltd", O="OPEN.co., ltd", L=Busanjin-gu, S=Busan, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
6C7B063829C3429B03759FEF1CAA5B82

Registration
CLSIDs:
{00F4C58B-C2F1-45B7-B9A5-59C1F7C86DAA}, {031BAC6F-BD0B-41F2-863A-6E9B0FFA4025}

COM registered:
Yes

File PE Metadata
Compilation timestamp:
10/25/2011 6:03:44 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0x20ABA9

Entry point:
B8, 8C, B8, 60, 00, 50, 64, FF, 35, 00, 00, 00, 00, 64, 89, 25, 00, 00, 00, 00, 33, C0, 89, 08, 50, 45, 43, 6F, 6D, 70, 61, 63, 74, 32, 00, 08, E1, 48, 01, E9, 60, 60, 15, 83, EC, 30, 8B, 1D, 44, 24, 34, 1F, 48, 01, 53, 55, 56, BE, 01, BF, 2F, 8C, DE, D3, E3, 1E, 04, 78, 57, 3D, 78, 0C, E7, 1A, D6, D3, E2, 89, 0E, 41, 03, C8, B8, 1D, 37, 38, D0, E0, 33, ED, 2B, 72, DE, 0C, D6, 05, 36, 07, 1A, 89, 1D, 7C, 24, 20, 1D, 6C, 0D, 14, C6, 40, CB, 3E, 1A, 5C, BE, 38, BE, 54, B3, 3C, 23, 10, E3, 74, E3, 1C, 22, 09...
 
[+]

Entropy:
7.9801

Packer / compiler:
PECompact v2

Code size:
1.5 MB (1,550,848 bytes)

Internet Explorer BHO
CLSID:
{00F4C58B-C2F1-45B7-B9A5-59C1F7C86DAA}

CLSID name:
&RecentSearch Helper Object


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