A.DLL

Fraudulent Security Program

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Associated Malware Groups

The filename is associated with the malware groups:

Fraudulent Security Program
Cloaked Malware
Malware Downloader

File Behavior

A.DLL has been seen to perform the following behavior:

Adds a Registry Key (RUN) to auto start Programs on system start up
The Process is packed and/or encrypted using a software packing process
Opens browser pop ups
Uses DNS to retrieve the IP address for 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
The Process is polymorphic and can change its structure

A.DLL has been the subject of the following behavior:

Created as a process on disk
Added as a Registry auto start to load Program on Boot up
Registered as a Dynamic Link Library File
Executed as a Process
Created as a new Background Service on the machine
Enabled as an In Process Object/Server - Common with DLL Injections
Deleted as a process from disk

Country Of Origin

The filename A.DLL was first seen on Jun 2 2007 in the following geographical regions of the Webroot community:

Europe on Jun 2 2007
Canada on Jun 2 2007
Spain on Jun 28 2007
Ukraine on Dec 8 2009
Russian Federation on Dec 8 2009
The United States on Jun 9 2011
The United Kingdom on Jun 9 2011
Turkey on May 20 2012

File Name Aliases

A.DLL can also use the following file names:

INO16.DLL
INO17.DLL
PAD.DLL
FKD.DLL
GXM.DLL
BYA.DLL
TJL.DLL
CBFMG.DLL
TMIPLFM.DLL
NEUIS.DLL
ADOKY.DLL
QADWP.DLL
CDXDD.DLL
VOQFU.DLL
URQYS.DLL
AIXNU.DLL
ZEOGD.DLL
JEUIRZT.DLL
PZQVJIRV.DLL
TPFUARSK.DLL
OKM.DLL
TJQGDX.DLL
LUBVUHVH.DLL
LKIP.DLL
ZVEGV.DLL
SWYMXLCTO.DLL
WGZHS.DLL
KMLGU.DLL
QVAKH.DLL
GMCZZE.DLL
TAW.DLL
LIWQGWK.DLL
WRGDXQ.DLL
OKFXW.DLL
HWTTZELK.DLL
XPN.DLL
IESDLE.DLL
SSB.DLL
RUASKRAZ.DLL
OFBNPXWX.DLL
CIFXZ.DLL
GKDME.DLL
SLWYMEA.DLL
XVWWTXBXX.DLL
HMFJHECI.DLL
WVKUNMGFB.DLL
VPRTPNBY.DLL
HQCVU.DLL
UBXXBAFLF.DLL
AYF.DLL
YQSQY.DLL
WMCX.DLL
TUERCLI.DLL
RVOXOKTE.DLL
ESQLO.DLL
BYCEINYVO.DLL
EHUEE.DLL
IHHNWCX.DLL
QGCXQLXM.DLL
LRUETAIS.DLL
ZWD.DLL
YUABEMIZX.DLL
JMKWCY.DLL
GCDLC.DLL
GUS.DLL
QUFNY.DLL
MLCTRK.DLL
ELNST.DLL
LKTND.DLL
FAGPDRL.DLL
YIQWMRTS.DLL
ZEYFEUZQP.DLL
QLIGENFU.DLL
HSBGQYUO.DLL
SLFYMOUBZ.DLL
GOVQ.DLL
EAZGRW.DLL
UZIVQPXQW.DLL
BWIOE.DLL
IRVREZP.DLL
ZSYJM.DLL
KLUH.DLL
FGBHUYF.DLL
UOBXC.DLL
FDCGYX.DLL
TRBOJD.DLL
AVMZKC.DLL
MXD.DLL
WZXGU.DLL
FIAQUL.DLL
KCHPFOMGK.DLL
AUTOFKT.EXE
AAAASP.DLL
B.DLL
D.DLL
I.DLL
Z.DLL
G.DLL
J.DLL
F.DLL
L.DLL
M.DLL
P.DLL
U.DLL
V.DLL
WM.DLL
LB.DLL
EG.DLL
EJ.DLL
RN.DLL
JR.DLL
PP.DLL
XX.DLL
KK.DLL
AO.DLL
SP.DLL
OF.DLL
LY.DLL
GO.DLL
V12.5.DLL
03287709.DAT

Filesizes

The following file size has been seen:

49,152 bytes
20,696 bytes
325,640 bytes
135,194 bytes
79,872 bytes
12,681 bytes
16,896 bytes
80,896 bytes

File Type

The filename A.DLL is used by multiple object types including Dynamic Link LIbraries,objects.

File Activity

One or more files with the name A.DLL creates, deletes, copies or moves the following files and folders:

Opens/modifes c:\autoexec.bat
Creates c:\docume~1\user\locals~1\temp\000008ec00000954.url
Deletes c:\docume~1\user\locals~1\temp\000008ec00000954.url
Creates c:\docume~1\user\locals~1\temp\00000948000006ac.url
Deletes c:\docume~1\user\locals~1\temp\00000948000006ac.url
Creates c:\docume~1\user\locals~1\temp\00000924000009c4.url
Deletes c:\docume~1\user\locals~1\temp\00000924000009c4.url
Creates c:\docume~1\user\locals~1\temp\00000a5000000a14.url
Deletes c:\docume~1\user\locals~1\temp\00000a5000000a14.url

Network Activity

One or more files with the name A.DLL performs the following network events:

DNS Lookup122.224.50.164 ytwl2.3322.org

Website Activity

One or more files with the name A.DLL interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.

TCP:122.224.50.164:4455 Port:14

Help the Webroot Community to fight cyber crime

We are always looking for ways to improve the quality and speed of research to help us protect you from malicious software and cyber crime.

The filename referred to in this report is often associated with PC infections. If you have a program of this name on your PC and would like to help our research please tell us what you know in the form below:

I have this file on my PC and believe it is an infection
I have this file on my PC and think it has made my PC slower
My firewall asked if I wanted to let this file have access to the Internet
My PC will not work since I noticed this file on it
My antivirus detected this file but won't remove it
I know what this file is and believe it is a Safe program
I am the author of this file and would like to discuss how to have it reclassified as safe

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