![]() Malicious Microsoft Publisher macros push Ekipa RATĮkipa RAT, besides incorporating XLL Excel add-ins, has also received an update in November 2022 that allows it to take advantage of Microsoft Publisher macros to drop the remote access trojan and steal sensitive information. "As more and more users adopt new versions of Microsoft Office, it is likely that threat actors will turn away from VBA-based malicious documents to other formats such as XLLs or rely on exploiting newly discovered vulnerabilities to launch malicious code in the process space of Office applications," Svajcer said. Join our insightful webinar! Save My Seat! Zero Trust + Deception: Learn How to Outsmart Attackers!ĭiscover how Deception can detect advanced threats, stop lateral movement, and enhance your Zero Trust strategy. One such method turns out to be XLL files, which is described by Microsoft as a "type of dynamic link library (DLL) file that can only be opened by Excel." While this blockade only applies to new versions of Access, Excel, PowerPoint, Visio, and Word, bad actors have been experimenting with alternative infection routes to deploy malware. To counter this misuse, the Windows maker enacted a crucial change starting in July 2022 that blocks macros in Office files attached to email messages, effectively severing a crucial attack vector. These documents traditionally prompt the victims to enable macros to view seemingly innocuous content, only to activate the execution of malware stealthily in the background. Weaponized Office documents delivered via spear-phishing emails and other social engineering attacks have remained one of the widely used entry points for criminal groups looking to execute malicious code. Now according to Cisco Talos, advanced persistent threat (APT) actors and commodity malware families alike are increasingly using Excel add-in (.XLL) files as an initial intrusion vector. The Lookup Function in Excel is an excellent function for quickly searching a worksheet to find a specific value.Microsoft's decision to block Visual Basic for Applications (VBA) macros by default for Office files downloaded from the internet has led many threat actors to improvise their attack chains in recent months. Lookup Vector = Column A Return Vector = Column B = LOOKUP (“Property”, A2:A20, B2:B20)Įxample 2: What type of Account is Code 600?Įxample 1: Who didn’t have any sales during Quarter 1? =LOOKUP (lookup_value, lookup_vector, return_vector) The Vector form searches a specific vector (either one row or one column range) for a value and then returns a value from that same position in a different vector. If you would like to use Array, you strongly recommend using the VLOOKUP or HLOOKUP functions instead. Vector is recommended when using the LOOKUP Function. When LOOKUP is selected from the ‘Lookup & Reference Button,’ a dialog box will appear asking which argument you will be using Vector or Array. Let’s look at the three lookup functions to see which is the best during certain circumstances. ![]() It starts by searching the first row for the value and then moves down the column to find the second value. HLOOKUP or Horizontal Lookup is used when you want to search down columns for information. Similar to LOOKUP, you would use this to search by stock code to find the price by searching across the row. It should be used when you need to find data within the worksheet by row. You’d use LOOKUP to locate the stock code and retrieve the price. For example, you know the stock code but want to know the stock price. The LOOKUP Function should be used when searching a single row or column for one piece of data to retrieve another piece of information within the same position.
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