How to remove “Win32/Slenfbot.AD”?

The Win32/Slenfbot.AD 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.

What Win32/Slenfbot.AD virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Presents an Authenticode digital signature
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Anomalous file deletion behavior detected (10+)
• A process attempted to delay the analysis task.
• Dynamic (imported) function loading detected
• Enumerates running processes
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Unconventionial language used in binary resources: Russian
• 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
• Deletes its original binary from disk
• Checks for the presence of known windows from debuggers and forensic tools
• Likely virus infection of existing system binary
• Attempts to identify installed analysis tools by a known file location
• Checks the presence of disk drives in the registry, possibly for anti-virtualization
• Creates a copy of itself

How to determine Win32/Slenfbot.AD?

File Info:
name: 7D0BBC72F7034E9922E7.mlwpath: /opt/CAPEv2/storage/binaries/4e5974847f34013583f88503f431d9c40c0ae3c006e4dec41570c0ca2f15b124crc32: 277C6F37md5: 7d0bbc72f7034e9922e795af8e70cb7fsha1: f7a6a8291855bf07ecaceede2aeaec10394c6861sha256: 4e5974847f34013583f88503f431d9c40c0ae3c006e4dec41570c0ca2f15b124sha512: 13b5e7a5a1e11f90fc748335e149cdb17cee8f12a005bc51cf6a76f23cedd1981023b031f5ce54e4f8cf94963d57f81784ae20c67fd5ee27ac2768172cf06c02ssdeep: 6144:Wb1xfynbC6cWuHvGMHtUCwZGH2w01MNaHt9JXhd:W1hbGkvGMNBwL1THt9Tdtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T11C1412020BBDD488EC9A1E34289ED4A2D870F5D88CBDEB5634774362DCF7AF52606749sha3_384: 8388ad6718c17a6002ec9c51535cf9bdd37a605fce43ccef08aee4319ac9a1513f183fa1dfb9bc028f1247e4808c978aep_bytes: 60be00f044008dbe0020fbff5783cdfftimestamp: 2004-03-21 13:31:54
Version Info:
CompanyName: AVG Technologies CZ, s.r.o.FileDescription: AVG Tray MonitorFileVersion: 9.0.0.871InternalName: avgtrayLegalCopyright: Copyright © 2010 AVG Technologies CZ, s.r.o.OriginalFilename: avgtray.exeProductName: AVG Internet SecurityProductVersion: 9.0.0.871PrivateBuild: Win32 Release_UnicodeSpecialBuild: Avg8VC8_2010_1109_133319(871), SVNRev 145063 (/branches/release/SmallUpdate9-12)Translation: 0x0409 0x04e4

Win32/Slenfbot.AD also known as:

How to remove Win32/Slenfbot.AD?

• 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.