Prevx Research Division
"PSYJO3.EXE"
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Associated Malware Groups
The filename is associated with the malware group:
- Malicious Software
File Behavior
PSYJO3.EXE has been seen to perform the following behavior:
- Executes a Process
- Injects code into other processes
- This Process Deletes Other Processes From Disk
- Creates new folders on the system
- Copies files
- This process creates other processes on disk
- Sets processes to start during user logon
- Found on infected systems and resists interrogation by security products
- The Process is packed and/or encrypted using a software packing process
- Writes to another Process's Virtual Memory (Process Hijacking)
- Disables the built in Windows File Protection System
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Disables the Notification Balloon for the Windows Security Center
- Disables Access to the Windows Registry Editior
- Disables Access to the Task Manager built into Windows
- Modifies Windows Security Policies to restrict/expand User Privileges on the machine
- Terminates Processes
- Changes the Windows Security Center to stop Antivirus status alerts from being displayed
- Changes the Windows Security Center to stop Firewall status alerts from being displayed
- Changes the Windows Security Center to stop Firewall override alerts from being displayed
- Changes the Windows Security Center to stop warnings from being displayed if automatic Windows Updates are not enabled
- Creates a new Background Service on the machine
PSYJO3.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Executed as a Process
- Deleted as a process from disk
- Copied to multiple locations on the system
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
Country Of Origin
The filename PSYJO3.EXE was first seen on Jan 4 2010 in the following geographical regions of the Webroot community:
- Ireland on Jan 4 2010
- The United Kingdom on Jan 5 2010
- Canada on Jan 5 2010
- Germany on Jan 5 2010
- Brazil on Mar 10 2011
- South Africa on Mar 10 2011
- Philippines on Mar 28 2012
File Name Aliases
PSYJO3.EXE can also use the following file names:
- ASAISW.EXE
- LOXJRCLA.EXE
- UTGEKK.EXE
- GHYLCG.EXE
- SXUGJF.EXE
- ROXJR.EXE
- GRWHHRN.EXE
- CKKICQ.EXE
- KWJF.EXE
- APRZPAIR.EXE
- NMWRURO.EXE
- MNKNILXT.EXE
- GXTUL.EXE
- REQRFB.EXE
- RLXZGTDW.EXE
- YZQZ.EXE
- KUXSO.EXE
- WLERMQJ.EXE
- JRCTZNAT.EXE
- TNSBZO.EXE
- VKIHOYIK.EXE
- PSGZ.EXE
- FLFL.EXE
- CVDLCQCT.EXE
- NFVTIQP.EXE
- MIX[1].EXE
- FQSX.EXE
- JO3[1].EXE
- 004.EXE
- JO3.EXE
- JO332.EXE
- 068.EXE
- 01049624.DAT
Filesizes
The following file size has been seen:
- 38,400 bytes
- 100,864 bytes
- 22,528 bytes
- 45,568 bytes
- 112,640 bytes
- 137,216 bytes
File Type
The filename PSYJO3.EXE refers to many versions of an executable program.
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