File Investigation Report
COOL.EXE
System Back DoorPC Cleanup in 3 Easy Steps
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
- Malicious Software
File Behavior
COOL.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Can make outbound communication to other computers, IM chat rooms and other services using IRC protocols
- Communicates with other computers using FTP connections
- This Process Disables Other Security Products
- Contains Exploit Code for the WEBDAV Exploit
- Contains DCOM Exploit Code
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Creates a TCP port which listens and is available for communication initiated by other computers
- Can communicate with other computer systems using HTTP protocols
- This Process Deletes Other Processes From Disk
- Makes outbound connections to other computers using NETBIOSOUT protocols
- Registers a Dynamic Link Library File
- Can communicate with other computers using TCP protocols
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Visits web sites on your PC without you knowing
- Downloads hidden code from covert web sites
- Found on infected systems and resists interrogation by security products
- Uses low level functions to hide itself from the user and from system/security processes
- Copies files
- Downloads program file(s) and other content from the web
- Creates a new Background Service on the machine
- Injects code into other processes
- Adds a Registry Key (RUNONCE) to auto start Programs on system start up
- Executes Processes stored in Temporary Folders
COOL.EXE has been the subject of the following behavior:
- Executed as a Process
- Created as a process on disk
- Created as a new Background Service on the machine
- Deleted as a process from disk
- Victim of a Heap Based Buffer Overflow Exploit
- Added as a Registry auto start to load Program on Boot up
- Has code inserted into its Virtual Memory space by other programs
- Downloaded from covert web sites without the user knowing
- This program is often downloaded from the web
- Terminated as a Process
Country Of Origin
The filename COOL.EXE was first seen on May 14 2007 in the following geographical regions of the Prevx community:
- The United States on May 14 2007
- Canada on May 14 2007
- Germany on Oct 19 2007
- Spain on Jun 26 2008
- on Sep 20 2008
- France on Nov 19 2009
- Ukraine on Feb 3 2010
- India on Feb 3 2010
File Name Aliases
COOL.EXE can also use the following file names:
- GMYC.EXE
- YFKH.EXE
- VDIH.EXE
- HGVG.EXE
- YNOY.EXE
- NLGP.EXE
- XENV.EXE
- PPBB.EXE
- CYBP.EXE
- YUUK.EXE
- YGIB.EXE
- RIKR.EXE
- LIBSYS32.EXE
- COOL[1].EXE
- F.EXE
- 452.EXE
- 724.EXE
- 24232741.DAT
Filesizes
The following file size has been seen:
- 242,176 bytes
- 96,259 bytes
- 61,952 bytes
- 301,592 bytes
- 20,992 bytes
- 86,016 bytes
- 472,064 bytes
File Type
The filename COOL.EXE is used by multiple object types including executable programs,objects,objects.
File Activity
One or more files with the name COOL.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\noytcyr.exe
- Deletes c:\windows\system32\wsldoekd.exe
- Deletes c:\windows\system32\afisicx.exe
- Deletes c:\windows\system32\roytctm.exe
- Deletes c:\windows\system32\tdydowkc.exe
- Deletes c:\windows\system32\mabidwe.exe
- Deletes c:\windows\system32\soxpeca.exe
- Copies filec:\windows\system32\urlmon.dll to c:\docume~1\user\locals~1\temp\mta115730.dll
- Opens/modifes c:\autoexec.bat
- Creates c:\windows\system32\dontinstall.dat
- Deletes c:\windows\system32\dontinstall.dat
- Creates c:\windows\system32\softinstall.dat
- Deletes c:\windows\system32\softinstall.dat
- Creates c:\windows\system32\comsa32.sys
- Creates c:\docume~1\user\locals~1\temp\tmp0_166872878185.bk
- Moves c:\windows\system32\rtl60.bpl to c:\docume~1\user\locals~1\temp\tmp0_166872878185.bk.
- Moves c:\docume~1\user\locals~1\temp\tmp0_166872878185.bk to c:\windows\system32\rtl60.bpl
- Deletes c:\docume~1\user\locals~1\temp\tmp0_166872878185.bk.
- Creates c:\docume~1\user\locals~1\temp\tmp0_630713105462.bk
- Moves c:\windows\system32\tpszxyd.sys to c:\docume~1\user\locals~1\temp\tmp0_630713105462.bk.
- Moves c:\docume~1\user\locals~1\temp\tmp0_630713105462.bk to c:\windows\system32\tpszxyd.sys
- Deletes c:\docume~1\user\locals~1\temp\tmp0_630713105462.bk.
- Copies filec:\windows\system32\urlmon.dll to c:\docume~1\user\locals~1\temp\mtaw55029.dll
- Creates c:\windows\system32\tmp0_40377629852.bk
- Creates c:\windows\system32\tmp0_877179298133.bk
- Moves c:\windows\system32\udxfytw.sys to c:\windows\system32\tmp0_877179298133.bk.
- Moves c:\windows\system32\tmpxr_789750351612.bk to c:\windows\system32\tmp0_40377629852.bk.
- Moves c:\windows\system32\tmp0_877179298133.bk to c:\windows\system32\udxfytw.sys
- Moves c:\windows\system32\tmp0_40377629852.bk to c:\windows\system32\tmpxr_789750351612.bk
- Deletes c:\windows\system32\tmp0_40377629852.bk.
- Deletes c:\windows\system32\tmp0_877179298133.bk.
- Moves c:\windows\system32\tmpxr_789750351612.bk to c:\windows\system32\noytcyr.exe
- Creates c:\windows\system32\Install.txt
- Creates c:\windows\Install.txt
- Creates c:\windows\system32\tmp0_115667534383.bk
- Moves c:\windows\system32\tmpxr_716760894292.bk to c:\windows\system32\tmp0_115667534383.bk.
- Moves c:\windows\system32\tmp0_115667534383.bk to c:\windows\system32\tmpxr_716760894292.bk
- Deletes c:\windows\system32\tmp0_115667534383.bk.
- Moves c:\windows\system32\tmpxr_716760894292.bk to c:\windows\system32\wsldoekd.exe
- Creates c:\windows\system32\tmp0_841591291119.bk
- Moves c:\windows\system32\tmpxr_4202317159.bk to c:\windows\system32\tmp0_841591291119.bk.
- Moves c:\windows\system32\tmp0_841591291119.bk to c:\windows\system32\tmpxr_4202317159.bk
- Deletes c:\windows\system32\tmp0_841591291119.bk.
- Moves c:\windows\system32\tmpxr_4202317159.bk to c:\windows\system32\afisicx.exe
- Copies filec:\windows\system32\urlmon.dll to c:\docume~1\user\locals~1\temp\mta73659.dll
- Deletes c:\docume~1\user\locals~1\temp\mta73659.dll
- Copies filec:\windows\system32\urlmon.dll to c:\windows\temp\mta103529.dll
- Copies filec:\windows\system32\urlmon.dll to c:\docume~1\user\locals~1\temp\mta107431.dll
- Deletes c:\docume~1\user\locals~1\temp\mta107431.dll
- Copies filec:\windows\system32\urlmon.dll to c:\windows\temp\mta33473.dll
Process Interaction
One or more files with the name COOL.EXE exerts control over the following processes:
- Kills C:\WINDOWS\system32\wuauclt.exe
Network Activity
One or more files with the name COOL.EXE performs the following network events:
- DNS Lookup74.54.89.66 bfkq.com
- DNS Lookup74.54.201.210 74.54.201.210
- DNS Lookup74.54.89.66 74.54.89.66
- DNS Lookup74.52.142.226 jsactivity.com
- DNS Lookup74.55.37.210 74.55.37.210
- DNS Lookup174.133.126.2 174.133.126.2
- DNS Lookup72.32.202.199 xmlRevenue.com
- DNS Lookup63.251.210.68 search.epilot.com
- DNS Lookup195.70.16.195 acnetwork.flux.acsyndication.com
- DNS Lookup67.15.231.251 www.clixshare.com
- DNS Lookup67.15.231.239 www.clixshare.co.uk
- DNS Lookup208.79.82.154 infobits.net
- DNS Lookup198.87.233.14 www.searchfeed.com
- DNS Lookup66.150.51.167 www.searchfeed.com
- DNS Lookup76.13.216.11 ad.adconsole.com
- DNS Lookup66.45.56.108 click.mygeek.com
- DNS Lookup76.13.222.11 ad.yieldmanager.com
- DNS Lookup4.78.248.80 current.com
- DNS Lookup87.117.199.122 adserving.muppetism.com
- DNS Lookup208.116.9.206 www.kontraband.com
- DNS Lookup69.41.170.30 www.valusearch2004.com
- DNS Lookup216.150.146.92 search.revenuepilot.com
- DNS Lookup69.41.173.97 www.smarterclickz.com
- DNS Lookup69.46.120.11 mamma.com
- DNS Lookup69.41.173.186 2007search.com
- DNS Lookup213.136.33.208 click.search123.uk.com
- DNS Lookup87.248.116.84 rc23.overture.com
- DNS Lookup208.122.7.102 pixel1816.everesttech.net
- DNS Lookup91.102.184.110 www.moneysupermarket.com
- DNS Lookup69.41.173.174 justforclickz.com
- DNS Lookup69.41.173.95 lookcode.com
- DNS Lookup69.41.173.164 searchdaze.com
- DNS Lookup txsearch.epilot.com
- DNS Lookup click.mygeek.com
- DNS Lookup xml.click9.com
- DNS Lookup208.79.82.154 www.infobits.net
- DNS Lookup63.251.210.114 txsearch.epilot.com
- DNS Lookup www.esearchall.com
- DNS Lookup lookcode.com
- DNS Lookup click.revenuepilot.com
- DNS Lookup66.116.125.43 c.enhance.com
- DNS Lookup84.45.224.6 www.btpodshow.com
- DNS Lookup208.254.3.171 ns1.activeaudience.com
- DNS name server08.254.3.171
Website Activity
One or more files with the name COOL.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- Remote server connection to bfkq .co
- Remote server connection to 208 .43 .250 .16
- TCP:127.0.0.1:1077 Port:16
- TCP:74.54.89.66:8392 Port:18
- Port 80 IP:208.43.250.164
- Remote server connection to 74 .52 .164 .21
- TCP:127.0.0.1:1111 Port:20
- TCP:208.254.3.171:53 Port:26
- TCP:74.54.89.66:8392 Port:15
- TCP:74.54.201.210:8392 Port:15
- TCP:74.54.89.66:8392 Port:15
- TCP:74.52.142.226:8392 Port:15
- TCP:74.55.37.210:8392 Port:15
- TCP:174.133.126.2:8392 Port:15
- TCP:74.55.37.210:8392 Port:15
- TCP:74.52.142.226:8392 Port:15
- Port 80 IP:63.251.210.68
- Port 80 IP:72.32.202.199
- Port 80 IP:208.52.165.148
- Port 80 IP:69.41.173.186
- Port 80 IP:69.41.173.164
- Port 80 IP:195.70.16.195
- Port 80 IP:69.41.173.174
- Port 80 IP:67.15.231.251
- Port 80 IP:66.150.51.167
- Port 80 IP:208.52.165.145
- Port 80 IP:208.52.165.144
- Port 80 IP:66.45.56.108
- Port 80 IP:4.78.248.80
- Port 80 IP:198.87.233.14
- Port 80 IP:87.117.199.122
- Port 80 IP:208.116.9.206
- Port 80 IP:74.52.164.210
- Port 80 IP:67.15.231.239
- Port 80 IP:208.79.82.154
- Port 80 IP:69.46.120.11
- Port 80 IP:63.251.210.114
- Port 80 IP:76.13.216.11
- Port 80 IP:76.13.222.11
- Port 80 IP:69.41.170.30
- Port 80 IP:216.150.146.92
- Port 80 IP:69.41.173.95
- Port 80 IP:69.41.173.97
- Port 80 IP:213.136.33.208
- Port 80 IP:87.248.116.84
- Port 80 IP:208.122.7.102
- Port 80 IP:91.102.184.110
- Port 80 IP:66.116.125.43
- Port 80 IP:84.45.224.6
- TCP:74.54.89.66:8392 Port:14
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