GMER (PUA) removal tips

The GMER (PUA) is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What GMER (PUA) virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• Sample contains Overlay data
• Uses Windows utilities for basic functionality
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• Executed a sysinternals tool
• CAPE detected the shellcode get eip malware family
• Accessed credential storage files
• Accessed credential storage registry keys
• Deletes executed files from disk
• Attempts to disable System Restore
• Adds itself to the Safe Mode boot to ensure its start
• Modifies Image File Execution Options, indicative of process injection or persistence
• Yara detections observed in process dumps, payloads or dropped files

How to determine GMER (PUA)?

File Info:
name: DB927505202E27243926.mlw
path: /opt/CAPEv2/storage/binaries/3df307b3eb456a5ac8c3778858952fafcc918be382ee546cef47e39154741363
crc32: 9A11C6A4
md5: db927505202e272439266b66e88d9e11
sha1: 0221114c46d1b1d5965e0281c39a3d5bfea2ce2d
sha256: 3df307b3eb456a5ac8c3778858952fafcc918be382ee546cef47e39154741363
sha512: 141c697833ff00ba46b7d792f23ef654ff7bdef825bcb39c59d7f05ce5986f678e1b036d629e08cc83dad768952500fd4e7a85e66ff077cf55b66f2f9dd4cbf5
ssdeep: 98304:O/RIRTXqaiojX7ot2mfLmxjOVcoDF70PMcRnpHJmrpoUggXQ9n5M:eOcXo02WZ970P7JmloU3XQlK
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12E3633E0E7198681F44CA13D6CACC71AC57472929B2B5F8F94D03CD1F5F22620EDAA79
sha3_384: 494e0573921767494bfca61c1c686427abed4459c4438bc892cca98cdc0c6bfcea2c4b138beed8b4167040f278870982
ep_bytes: 60be00d042008dbe0040fdff57eb0b90
timestamp: 2009-12-05 22:50:46

Version Info:
CompanyName: Swearware
FileDescription: ComboFix NSIS Installer
FileVersion: 13.09.28.02
InternalName: ComboFix.exe
LegalCopyright: sUBs
OriginalFileName: ComboFix.exe
ProductName: ComboFix
Translation: 0x0409 0x04e4

GMER (PUA) also known as:

How to remove GMER (PUA)?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.