GridinSoft Threat Intelligence
lmrn.dll threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.Perion. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.
- Detection name
- Adware.Perion
- Recommended action
- Scan and remove
- Last analysis
- 2025-04-06 23:01:30 (a year ago)
- File hash
- 2d5911351e157503a9776bf1f867d3d4
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.Perion.
First seen 2017-06-23 12:07:10 (8 years ago); latest analysis 2025-04-06 23:01:30 (a year ago).
Signed by Perion Network Ltd.. The signature is reported as valid, but signed files can still be bundled or abused.
ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.
Recommended action
What to do next
- Compare the MD5 above with the file found on the device.
- Check whether the file appears in the observed locations or under one of the alternate names.
- Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present.
File context
lmrn.dll is a Windows file recorded in the ThreatInfo database. The current detection status is Adware.Perion, based on the latest analysis from 2025-04-06 23:01:30 (a year ago).
If lmrn.dll appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as Adware.Perion.
File Details
| MD5: | 2d5911351e157503a9776bf1f867d3d4 |
| Size: | 1 MB |
| First Published: | 2017-06-23 12:07:10 (8 years ago) |
| Latest Published: | 2025-04-06 23:01:30 (a year ago) |
| Status: | Adware.Perion (on last analysis) | |
| Analysis Date: | 2025-04-06 23:01:30 (a year ago) |
Detection screenshot
The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.
Overview
| Signed By: | Perion Network Ltd. |
| Status: | Valid |
The signature on lmrn.dll is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.
Common Places:
| %system%\ljkb |
| %system% |
ThreatInfo has observed lmrn.dll in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.
Geographic signal
Observed country distribution
ThreatInfo has seen lmrn.dll across 17 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Taiwan with 14.3% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.
OS Version:
The most common operating system signal for lmrn.dll is Windows 7 with 75.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.
Analysis
lmrn.dll is identified as pe for 64-bit systems. The subsystem is Windows GUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
2ec5ecdf052ec2eb47159dd5c9287325
7f9af64df4d015f24617dd493f82f8bc
b174fc779221872af155139ed0f66a63
8eec9b0c9afa2442962b148e51b983b9
bf619eac0cdf3f68d496ea9344137e8b
2f4b1d51766adb537ce594be159f65ff
7d3b09ce8bf1e0c4b854c1d9e23e0d4f
PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.
Report conclusion
GridinSoft detects this file as Adware.Perion
This report identifies lmrn.dll by MD5 2d5911351e157503a9776bf1f867d3d4. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.