Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Information Stealer
- System Back Door
- Cloaked Malware
File Behavior
YSFXCKX5.EXE has been seen to perform the following behavior:
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Executes a Process
- Injects code into other processes
- Registers a Dynamic Link Library File
- This process creates other processes on disk
- Downloads program file(s) and other content from the web
- Performs DNS look ups to resolve URL IP addresses
- Found on infected systems and resists interrogation by security products
- Can communicate with other computer systems using HTTP protocols
- Writes to another Process's Virtual Memory (Process Hijacking)
YSFXCKX5.EXE has been the subject of the following behavior:
- Executed as a Process
- Registered as a Dynamic Link Library File
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename YSFXCKX5.EXE was first seen on Jul 14 2009 in the following geographical regions of the Webroot community:
- Spain on Jul 14 2009
- Costa Rica on Jul 21 2009
- Uruguay on Jul 21 2009
- South Africa on Apr 19 2010
- The United Kingdom on Apr 19 2010
File Name Aliases
YSFXCKX5.EXE can also use the following file name:
- YZXSXXX5.EXE
- XYSFXCKX5.EXE
- U7M4Y48H2.EXE
- YZSXXXX5.EXE
- R3V8N62U9.EXE
- S1P7R87A5.EXE
- YZXXXSX5.EXE
- K6N5W94V7.EXE
- Y1Q4Z89R9.EXE
- P4Q2U24Y3.EXE
- Z5Y6F33M9.EXE
- I8A1N91P6.EXE
- V7F5P52W3.EXE
- REDIALER[n].GIF
- B8N1H21K5.EXE
- K4A7X13C4.EXE
- Y9L6U28B5.EXE
- XYSFJIJ5.EXE
- A2J6H58H6.EXE
- K1Z6F56C5.EXE
- J5I1K91I4.EXE
- R1G3V49J9.EXE
- R1C9O47P2.EXE
- O7C2V95G8.EXE
- Y7D3W93Z7.EXE
- E5Y7O35S9.EXE
- X1Y9O65J4.EXE
- K4T9Z21D6.EXE
- Z5K1S49A2.EXE
- W1W6K88G2.EXE
- Q9J4R89D5.EXE
- C3P9B38T4.EXE
- N4J8G77Q4.EXE
- D2G5G28P6.EXE
- P3R6R38W7.EXE
- G8B1C98Y4.EXE
- O9X4F91S5.EXE
- Y8J7T87Y4.EXE
- J7R5T16R6.EXE
- J4C1B59X5.EXE
- V5K9K65B3.EXE
- I8N7V88N5.EXE
- L3P4J98Y2.EXE
- Y3B8P23Z8.EXE
- L5K7O71X9.EXE
- F6N3O11N1.EXE
- S1W7P11F7.EXE
- G6O4O59B7.EXE
- Y4K1L36L1.EXE
- YSXX5.EXE
- P2I7K95H8.EXE
- F8J6W81Z5.EXE
- P4P8I93D4.EXE
- X5R2H22O3.EXE
- W2W6H88V5.EXE
- 72214812.EXE
Filesizes
The following file size has been seen:
- 43,520 bytes
- 58,925 bytes
- 45,568 bytes
- 12,264 bytes
- 44,457 bytes
File Type
The filename YSFXCKX5.EXE refers to many versions of an executable program.
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